Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.

NEET Physics Solved Question Paper 2014

Multiple Choice Questions

If the position of a moving particle, with respect to time be, x(t) = 1 + t − t², then, the acceleration of particle is given by (assume all measurements in MKS)

− 1 ms^-2
− 1.5 ms^-2
− 2 ms^-2
− 2.5 ms^-2

A ball is dropped from a tower of height h. The duration (t₀) of motion, when it reaches bottom of the tower is given by

$\sqrt{\frac{2 h}{g}}$
$\sqrt{\frac{h}{g}}$
$2 \sqrt{\frac{h}{g}}$
$4 \sqrt{\frac{h}{g}}$

For the given position-time (x − t) graph , the interval in which velocity is zero, is

(t₃ − t₁)
(t₃ − t₂)
(t₅ − t₄)
(t₅ − t₂)

A particle moves along the x-axis as x = u (t −2s) + a (t − 2s)². The initial velocity of the particle is

u − 2a
u − 4a
2a − u
2a − 3u

5.
The centre of mass of three particles of mass m₁= 1.0 kg, m₂ = 2.0 kg, and m₃ = 3.0 kg at the corners of an equilateral triangle 1.0 m on a side, as shown in figure

$(\frac{7}{12} m, \frac{\sqrt{3}}{4} m)$

$(\frac{5}{12} m, \frac{\sqrt{3}}{5} m)$

$(\frac{5}{13} m, \frac{\sqrt{3}}{5} m)$

$(\frac{8}{12} m, \frac{\sqrt{3}}{5} m)$

$(\frac{7}{12} m, \frac{\sqrt{3}}{4} m)$

$x_{cm} = \frac{m_{1} x_{1} + m_{2} x_{2} + m_{3} x_{3}}{m_{1} + m_{2} + m_{3}} = \frac{(1.0 kg) (0 m) + (2.0 kg) (1.0 m) + (3.0 kg) (1.0 m . \cos 60 °)}{(1.0 kg + 2.0 kg + 3.0 kg)} = \frac{7}{12} m y_{cm} = \frac{\sum_{} m_{1} y_{1}}{\sum_{} m_{1}} = \frac{m_{1} y_{1} + m_{2} y_{2} + m_{3} y_{3}}{m_{1} + m_{2} + m_{3}} = \frac{(1.0 kg) (0 m) + (2.0 kg) (1.0 m) + (3.0 kg) (1.0 m . \sin 60 °)}{(1.0 kg + 2.0 kg + 3.0 kg)} = \frac{\sqrt{3}}{4} m$

A system consists of two point masses M and m (< M). The centre of mass of the system is

at the middle of m and M
nearer to M
nearer to m
at the position of large mass

A ball is projected horizontally with a velocity of 5 m/s from the top of a building 19.6 m high, flow long will the ball take to hit the ground?

$\sqrt{2} s$
2 s
$\sqrt{3} s$
3 s

A body of mass 3 kg is acted on by a force which varies as shown in the graph. The momentum acquired is given by

zero
5 N-s
30 N-s
50 N-s

Two perfectly elastic particles A and B of equal masses travelling along the line joining, them with velocity 15 m/s and 20 m/s respectively collide. Their velocities after the elastic collision will be (in m/s) respectively.

0 and 25
5 and 20
10 and 15
20 and 15

10.

A bomb of mass 16 kg at rest explodes into two pieces of masses 4 kg and 12 kg. The velocity of the 12 kg mass is 4 ms^-1 . The kinetic energy of the other mass is