tag:blogger.com,1999:blog-38545409632714009612024-02-22T18:55:01.469+05:30KRV CETPracticeCompetitive Exam Trainer Practice or CET Practice aspires to be a personal subject, preparation and answering technique trainer for students appearing for competitive examinations. CETPracticehttp://www.blogger.com/profile/09148066003351473947noreply@blogger.comBlogger78125tag:blogger.com,1999:blog-3854540963271400961.post-88252891254246349902015-05-26T12:10:00.001+05:302015-05-26T12:10:34.526+05:30<div dir="ltr" style="text-align: left;" trbidi="on">
The energy(E), angular momentum(L) and universal gravitational constant (G) are chosen as fundamental quantites. The dimensions of universal graviitational constant in the dimensional formula of Plank's constant (h) is<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
A)0<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
B)- 1<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
C)5 / 3<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
D)1<span class="Apple-tab-span" style="white-space: pre;"> </span></div>
CETPracticehttp://www.blogger.com/profile/09148066003351473947noreply@blogger.com0tag:blogger.com,1999:blog-3854540963271400961.post-28696653149317451362015-05-25T12:30:00.001+05:302015-05-25T12:30:06.052+05:30<div dir="ltr" style="text-align: left;" trbidi="on">
Newton's first law of motion leads to the concept of <br />A)force <br />B)inertia <br />C)both <br />D)temperature </div>
CETPracticehttp://www.blogger.com/profile/09148066003351473947noreply@blogger.com0tag:blogger.com,1999:blog-3854540963271400961.post-86186563342715045682015-04-30T16:56:00.001+05:302015-04-30T16:56:50.522+05:30<div dir="ltr" style="text-align: left;" trbidi="on">
A metal ball of mass 2 kg moving with a speed of 36 km/hr has a head-on collision with a stationary ball of mass 3 kg. If after collision, both the balls move together, then loss in kinetic energy due to collision is<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
A)40 J<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
B)60 J<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
C)100 J<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
D)140 J</div>
CETPracticehttp://www.blogger.com/profile/09148066003351473947noreply@blogger.com0tag:blogger.com,1999:blog-3854540963271400961.post-67326171853772650372015-04-27T17:30:00.001+05:302015-04-27T17:30:13.816+05:30<div dir="ltr" style="text-align: left;" trbidi="on">
One mole of an ideal gas undergoes an isothermal change at temperature 'T' so that its volume v is doubled. T is the molar gas constant. Work done by the gas during this change is<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
A)RT log 4<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
B)RT log 2<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
C)RT log 1<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
D)RT log 3</div>
CETPracticehttp://www.blogger.com/profile/09148066003351473947noreply@blogger.com0tag:blogger.com,1999:blog-3854540963271400961.post-81514506318713625432015-04-22T17:32:00.001+05:302015-04-22T17:32:28.972+05:30<div dir="ltr" style="text-align: left;" trbidi="on">
Two particles P and Q start from origin and execute Simple Harmonic Motion along X - axis with same amplitude but with periods 3 seconds and 6 seconds respectively. The ratio of the velocities of P and Q when they meet is<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
A)1 : 2<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
B)2 : 1<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
C)2 : 3<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
D)3 : 2</div>
CETPracticehttp://www.blogger.com/profile/09148066003351473947noreply@blogger.com0tag:blogger.com,1999:blog-3854540963271400961.post-60820405310077380742015-04-21T18:18:00.001+05:302015-04-21T18:18:08.914+05:30<div dir="ltr" style="text-align: left;" trbidi="on">
If a straight line perpendicular to 2x - 3y + 7 = 0 forms a triangle with the coordinate axes whose area is 3 sq. units, then the equation of the straight line(s) is<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
A)3x + 2y = ± 7<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
B)3x + 2y = ± 6<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
C)3x + 2y = ± 8<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
D)3x + 2y = ± 4</div>
CETPracticehttp://www.blogger.com/profile/09148066003351473947noreply@blogger.com0tag:blogger.com,1999:blog-3854540963271400961.post-26820416480108777182015-04-20T18:09:00.002+05:302015-04-20T18:09:39.843+05:30<div dir="ltr" style="text-align: left;" trbidi="on">
<div class="_5pbx userContent" data-ft="{"tn":"K"}" style="font-size: 14px; line-height: 1.38; overflow: hidden;">
<div style="display: inline;">
A ray of light is incident on the surface of a slab of refractive index 1.5 and of thickness 't' so that the ray of light has angle of refraction 600, then the time taken to cross the slab will be<br />A)3t/c<br />B)3t/2c<br />c)2t/3c<br />D)4t/3c</div>
</div>
<div>
</div>
<div id="u_v_9">
<form action="https://www.facebook.com/ajax/ufi/modify.php" class="commentable_item hidden_add_comment collapsed_comments" data-ft="{"tn":"]"}" id="u_v_3" method="post" rel="async" style="margin: 0px; padding: 0px;">
<div class="clearfix _5ybo _2zfm _5yhh" style="border-bottom-color: rgb(225, 226, 227); border-bottom-style: solid; border-bottom-width: 1px; border-top-color: rgb(225, 226, 227); border-top-style: solid; border-top-width: 1px; height: 30px; margin: 10px -12px 0px; padding-top: 8px; width: auto; zoom: 1;">
<div class="_3el2 lfloat _ohe" id="u_v_6" style="background-color: white; color: #141823; float: left; font-family: helvetica, arial, 'lucida grande', sans-serif; font-size: 12px; line-height: 16.0799999237061px; margin-top: -3px; position: absolute;">
<div data-reactid=".3c">
</div>
</div>
</div>
</form>
</div>
</div>
CETPracticehttp://www.blogger.com/profile/09148066003351473947noreply@blogger.com0tag:blogger.com,1999:blog-3854540963271400961.post-260470443178154032015-04-17T17:52:00.001+05:302015-04-17T17:52:34.894+05:30<div dir="ltr" style="text-align: left;" trbidi="on">
A stretched wire of some length under a tension is vibrating with its
fundamental frequency. Its length is decreased by 21%. Now its
fundamental freequency : <br />
A)increases by 50% <br /> B)increases by 100% <br /> C)decreases by 50% <span class="text_exposed_show"><br /> D)decreases by 25%</span></div>
CETPracticehttp://www.blogger.com/profile/09148066003351473947noreply@blogger.com0tag:blogger.com,1999:blog-3854540963271400961.post-5152165800029001162015-04-16T18:22:00.001+05:302015-04-16T18:22:09.716+05:30<div dir="ltr" style="text-align: left;" trbidi="on">
Circular disc of mass 2 kg and radius 1 metre is rotating about an axis perpendicular to its plane and passing through its centre of mass with a rotational kinetic energy of 8 Joules. The angular momentum in ( J-sec ) is <br />A)8 <br />B)4 <br />C)2 <br />D)1</div>
CETPracticehttp://www.blogger.com/profile/09148066003351473947noreply@blogger.com0tag:blogger.com,1999:blog-3854540963271400961.post-69869758874621027112015-04-16T08:46:00.003+05:302015-04-16T08:46:09.710+05:30<div dir="ltr" style="text-align: left;" trbidi="on">
<div style="color: #292f33; font-family: Arial, sans-serif; font-size: 13px; line-height: 20px;">
A ray of light is incident on the surface of a slab of refractive index 1.5 and of thickness 't' so that the ray of light has angle of refra<span style="background: rgb(255, 204, 204);">ction 600, then the time taken to cross the slab will be </span></div>
<div style="color: #292f33; font-family: Arial, sans-serif; font-size: 13px; line-height: 20px;">
<span style="background: rgb(255, 204, 204);">A)3t/c </span></div>
<div style="color: #292f33; font-family: Arial, sans-serif; font-size: 13px; line-height: 20px;">
<span style="background: rgb(255, 204, 204);">B)3t/2c </span></div>
<div style="color: #292f33; font-family: Arial, sans-serif; font-size: 13px; line-height: 20px;">
<span style="background: rgb(255, 204, 204);">2t/3c </span></div>
<div style="color: #292f33; font-family: Arial, sans-serif; font-size: 13px; line-height: 20px;">
<span style="background: rgb(255, 204, 204);">D)4t/3c</span></div>
</div>
CETPracticehttp://www.blogger.com/profile/09148066003351473947noreply@blogger.com0tag:blogger.com,1999:blog-3854540963271400961.post-4431694514263317822015-04-14T14:53:00.001+05:302015-04-14T14:53:39.379+05:30<div dir="ltr" style="text-align: left;" trbidi="on">
The maximum resultant of two concurrent forces is 10N and their minimum resultant is 4N. The magnitude of large force is <br />A)5N <br />B)7N <br />C)3N <br />D)14N</div>
CETPracticehttp://www.blogger.com/profile/09148066003351473947noreply@blogger.com0tag:blogger.com,1999:blog-3854540963271400961.post-45198454648319683032015-04-13T18:11:00.001+05:302015-04-13T18:11:21.371+05:30<div dir="ltr" style="text-align: left;" trbidi="on">
A boat which has a speed of 13 kmph in still water crosses a river of width 1 km along the shortest possible path in 12 minutes. The velocity of the river water in kmph is :<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
A)12<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
B)10<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
C)8<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
D)6</div>
CETPracticehttp://www.blogger.com/profile/09148066003351473947noreply@blogger.com0tag:blogger.com,1999:blog-3854540963271400961.post-40318034829347947772015-04-11T17:17:00.001+05:302015-04-11T17:17:48.277+05:30<div dir="ltr" style="text-align: left;" trbidi="on">
A man travels 1 mile due east, than 5 miles due south, then 2 miles due east and finally 9 miles due north. His displacement is<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
A)3 miles<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
B)5 miles<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
C)4 miles<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
D)between 5 and 9 miles</div>
CETPracticehttp://www.blogger.com/profile/09148066003351473947noreply@blogger.com0tag:blogger.com,1999:blog-3854540963271400961.post-76688311169738071052015-04-09T18:00:00.001+05:302015-04-09T18:00:38.906+05:30<div dir="ltr" style="text-align: left;" trbidi="on">
Which of the following is used as a moderator in nuclear reactors?<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
A)Heavy hydrogen<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
B)Ozone<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
C)Heavy water<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
D)Hydrogen peroxide</div>
CETPracticehttp://www.blogger.com/profile/09148066003351473947noreply@blogger.com0tag:blogger.com,1999:blog-3854540963271400961.post-48607969526003545952015-04-08T17:57:00.001+05:302015-04-08T17:57:14.773+05:30<div dir="ltr" style="text-align: left;" trbidi="on">
The number of 5 - digited numbers which are not divisible by 5 and which consist of different odd digits is<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
A)96<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
B)120<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
C)24<br />
D)32</div>
CETPracticehttp://www.blogger.com/profile/09148066003351473947noreply@blogger.com0tag:blogger.com,1999:blog-3854540963271400961.post-29554289006488683402015-04-06T18:00:00.001+05:302015-04-06T18:23:32.808+05:30<div dir="ltr" style="text-align: left;" trbidi="on">
The man who is known as the Father of Experimental Physics is<br />
A)Albert Einstein<br />
B)Galileo<br />
C) Rutherford<br />
D)Newton</div>
CETPracticehttp://www.blogger.com/profile/09148066003351473947noreply@blogger.com0tag:blogger.com,1999:blog-3854540963271400961.post-90669196493647946992015-04-03T18:15:00.001+05:302015-04-03T18:15:59.000+05:30<div dir="ltr" style="text-align: left;" trbidi="on">
A vector points vertically upward and points towards south. Then the vector product is<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
A)along west<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
B)along east<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
C)along north<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
D)vertically down ward</div>
CETPracticehttp://www.blogger.com/profile/09148066003351473947noreply@blogger.com0tag:blogger.com,1999:blog-3854540963271400961.post-80076201514397631982015-04-02T17:49:00.001+05:302015-04-02T17:49:29.887+05:30<div dir="ltr" style="text-align: left;" trbidi="on">
A nail is located at a certain distance vertically below the point of suspension of a simple pendulum of length 1m. The pendulum is released from the horizontal position. If it rotates in a vertical circle with nail as centre, the distiance of nail from point of suspension is<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
A)0.5 m<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
B)0.6 m<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
C)0.4 m<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
D)0.8m</div>
CETPracticehttp://www.blogger.com/profile/09148066003351473947noreply@blogger.com0tag:blogger.com,1999:blog-3854540963271400961.post-43573603748485561922015-03-31T17:49:00.001+05:302015-03-31T17:49:31.460+05:30<div dir="ltr" style="text-align: left;" trbidi="on">
An object 2.4 m in front of a lens forms a sharp image on a film 12 cm behind the lens. A glass plate 1 cm thick, of refractive index 1.50 is interposed between lens and film with its plane faces parallel to film. At what distance (from lens) should object be shifted to be in sharp focus on film?<br />
a)7.2 m<br />
B)2.4 m<br />
C)3.2 m<br />
D)5.6 m</div>
CETPracticehttp://www.blogger.com/profile/09148066003351473947noreply@blogger.com0tag:blogger.com,1999:blog-3854540963271400961.post-35309866251604227752015-03-30T17:47:00.001+05:302015-03-30T17:47:48.120+05:30<div dir="ltr" style="text-align: left;" trbidi="on">
In the sequence {1}, {2 , 3}, {4 , 5 , 6}, {7 , 8 , 9 , 10} .......... of sets the sum of elements in the 50th set is<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
A)62525<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
B)65225<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
C)56255<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
D)55625</div>
CETPracticehttp://www.blogger.com/profile/09148066003351473947noreply@blogger.com0tag:blogger.com,1999:blog-3854540963271400961.post-21963157179075827632015-03-29T12:16:00.001+05:302015-03-29T12:16:57.203+05:30<div dir="ltr" style="text-align: left;" trbidi="on">
A 5kg stone falls from a height of 1000m and penetrates 2m in a layer of sand. The time of penetration is<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
A)14.285 s<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
B)0.0285 s<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
C)7.146 s<br />
D)0.285 s</div>
CETPracticehttp://www.blogger.com/profile/09148066003351473947noreply@blogger.com1tag:blogger.com,1999:blog-3854540963271400961.post-44668450571854646262015-03-28T10:21:00.001+05:302015-03-28T10:21:05.923+05:30<div dir="ltr" style="text-align: left;" trbidi="on">
A metal ball of mass 2 kg moving with a speed of 36 km/hr has a head-on collision with a stationary ball of mass 3 kg. If after collision, both the balls move together, then loss in kinetic energy due to collision is<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
A)40 J<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
B)60 J<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
C)100 J<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
D)140 J</div>
CETPracticehttp://www.blogger.com/profile/09148066003351473947noreply@blogger.com0tag:blogger.com,1999:blog-3854540963271400961.post-11203897149363962382015-03-26T17:41:00.001+05:302015-03-26T17:41:02.881+05:30<div dir="ltr" style="text-align: left;" trbidi="on">
Which of the following is a favourable factor for cation formation ?<br />
A)High electronegativity<br />
B)High electron affinity<br />
C)Low ionisation potential<br />
D)Smaller atomic size</div>
CETPracticehttp://www.blogger.com/profile/09148066003351473947noreply@blogger.com0tag:blogger.com,1999:blog-3854540963271400961.post-17358391466118917762015-03-25T18:09:00.001+05:302015-03-25T18:09:48.766+05:30<div dir="ltr" style="text-align: left;" trbidi="on">
<span style="background-color: white; color: #141823; font-family: helvetica, arial, 'lucida grande', sans-serif; font-size: 14px; line-height: 19.3199996948242px;">Which of the following is a scalar quantity? </span><br style="background-color: white; color: #141823; font-family: helvetica, arial, 'lucida grande', sans-serif; font-size: 14px; line-height: 19.3199996948242px;" /><span style="background-color: white; color: #141823; font-family: helvetica, arial, 'lucida grande', sans-serif; font-size: 14px; line-height: 19.3199996948242px;">A)Electric current </span><br style="background-color: white; color: #141823; font-family: helvetica, arial, 'lucida grande', sans-serif; font-size: 14px; line-height: 19.3199996948242px;" /><span style="background-color: white; color: #141823; font-family: helvetica, arial, 'lucida grande', sans-serif; font-size: 14px; line-height: 19.3199996948242px;">B)Electric field strength </span><br style="background-color: white; color: #141823; font-family: helvetica, arial, 'lucida grande', sans-serif; font-size: 14px; line-height: 19.3199996948242px;" /><span style="background-color: white; color: #141823; font-family: helvetica, arial, 'lucida grande', sans-serif; font-size: 14px; line-height: 19.3199996948242px;">C)Acceleration </span><br style="background-color: white; color: #141823; font-family: helvetica, arial, 'lucida grande', sans-serif; font-size: 14px; line-height: 19.3199996948242px;" /><span style="background-color: white; color: #141823; font-family: helvetica, arial, 'lucida grande', sans-serif; font-size: 14px; line-height: 19.3199996948242px;">D)Linear momentum</span></div>
CETPracticehttp://www.blogger.com/profile/09148066003351473947noreply@blogger.com0tag:blogger.com,1999:blog-3854540963271400961.post-20581454190385579182015-03-24T18:25:00.001+05:302015-03-24T18:25:21.573+05:30<div dir="ltr" style="text-align: left;" trbidi="on">
A smooth string passes over a fixed light pul ley and masses 1kg and 2kg are tied to the two ends of the string. The system is held at rest and then released. The centre of mass of the system<span class="Apple-tab-span" style="white-space: pre;"> </span>A)remains in the same position<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
B)moves down<br />
C)moves up<span class="Apple-tab-span" style="white-space: pre;"> </span><br />
D)first moves up and then moves down</div>
CETPracticehttp://www.blogger.com/profile/09148066003351473947noreply@blogger.com0