# National Standard Examination in Physics (NSEP) Solved Paper 2016 Part-17

Q: 60. The variation of velocity with time of a toy car moving along a straight line is as shown below. Which of the following graphs correctly represents the variation of acceleration with time for the toy car?

(A)

(B)

(C)

(D)

In Q. Nos. 61 to 70 any number of options (1 or 2 or 3 or all 4) may be correct. You are to identify all of them correctly to get 6 marks. Even if one answer identified is incorrect or one correct answer is missed, you get zero marks.

Q: 61. A particle moves in XY Plane according to the relations x = kt and y = kt(1-pt) where k and p are positive constants and t is time. Therefore,

(A) The trajectory of the particle is parabola

(B) The particle has constant velocity along X axis

(C) The force acting on the particle remains in the same direction even if both k and p are negative constants

(D) The particle has a constant acceleration along – Y axis

Q: 62. A charge q is situated at the origin. Let and be the electric fields at the points Therefore

(A)

(B) No work is done is done in moving a test charge from B to C.

(C)

(D)

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