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Test Series-2




Instructions

  • Your test contains 10 multiple choice questions with only one answer
  • You can Finish this test any time using 'Submit' button.
  • Once finished you get a chance to review all question with correct answers and their solutions.
  • You will be awarded three (2) marks each for indicated correct response of each question.

1.The displacement of particle is as per equation
y=at2+bt+c
Find the acceleration at time t=0
  • 2a
  • b
  • c
  • 2a+b

2.which of these is not true for adiabatic process ?
  • dQ=0
  • dU+dW=0
  • dT=0
  • Molar specific heat is zero


3.which of these is inertial frame of refrence?
  • A observer in car slowing down
  • A observer in train speeding up
  • A observer in car in uniform circular motion
  • A observer in cycle moving with constant velocity.

4. Find the number of electrons in 5 Columb?
  • 31.25*1018
  • 31.5*1018
  • 31*1018
  • 32.25*1018
5.Consider the following two statement
Statement A:Workdone in a closed loop by electrical force is zero
Statement B:The force on one charge due to another charge is not affected by the presence of other charges near by.
  • A & B both are correct
  • A is correct only
  • B is correct only
  • A & B both are wrong

6.What is not true of uniform circular motion ?
  • Centrepetal force=mv2/R
  • angular velocity=v/r
  • angular acceleration >0
  • Speed is constant

7. A particle moves such that
x=asinwt and y =bcoswt
what is the trajactory of the particle?
  • Eclipse
  • circle
  • straight line
  • parabola

8.A line source emits a cylindrical wave.if the medium absorbs no energy,the amplitude will vary with distance y from the source as proportional to
  • y-1
  • y-2
  • y-1/2
  • y1/2

9.find the maximum attainable temperature of ideal gas when gas undergoes through the process P=P0-aV2
  • (2P0/2R)(P0/3a)1/2
  • (4P0/2R)(P0/3a)1/2
  • (2P0/2R)(P0/a)1/2
  • (2P0/2R)(P0/2a)1/2

10. Two masses m1 = 6 kg and m2 = 14 kg tied to a string are hanging over a light frictionless pulley. What is the acceleration of the masses when lift free to move?(g = 10 m/s2)
  • 4 m/s2
  • 2 m/s2
  • 3 m/s2
  • 1 m/s2



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