List of top Physics Questions asked in NEET (UG)

A mass of $0.5 \,kg$ moving with a speed of $1.5 \,m/s$ on a horizontal smooth surface, collides with a nearly weightless spring of force constant $k = 50 \,N/m$. The maximum compression of the spring would be

A equiconvex lens is cut into two halves along (i) XOX and (ii)YOY as shown in the figure. Let f,ff be the focal lengths of the complete lens,of each half in case (i), and of each half in case (ii), respectively 

Choose the correct statement from the following

A charge q is located at the centre of a cube. The electric flux through any face is:
A man weighs 80 kg, he stands on a weighing scale in a lift which is moving upwards with a uniform acceleration of 5 m/s2. What would be the reading on the scale? (g=10 m/s2) 
The mass of proton is 1.0073 u and that of neutron is 1.0087 u (u = atomic mass unit). The binding energy of  \(_2^4 He\) is (Given: helium nucleus mass ≈ 4.0015 u) 
A photoelectric cell is illuminated by a point source of light 1 m away. When the source is shifted to 2 m then-

Two 220-volt, 100-watt bulbs are connected first in series and then in parallel. Each time the combination is connected to a 220-volt a.c. supply line. The power drawn by the combination in each case respectively will be:

In a Wheatstone's bridge all the four arms have equal resistance R. If the resistance of the galvanometer arm is also R,the equivalent resistance of the combination as seen by the battery is:

A charged particle moves through a magnetic field in a direction perpendicular to it. Then the
A ball rolls without slipping. The radius of gyration of the ball about an axis passing through its centre of mass is K. If radius of the ball be R, then the fraction of total energy associated with its rotational energy will be:
A solid cylinder of mass M and radius R rolls without slipping down an inclined plane of length L and height h. What is the speed of its centre of mass when the cylinder reaches its bottom-
We consider the radiation emitted by the human body. Which of the following statements is true:
The acceleration due to gravity on the planet A is 9 times the acceleration due to gravity on planet B. A man jumps to a height of 2m on the surface of A. What is the height of jump by the same person on the planet B.
A stationary particle explodes into two particles of masses m1 and m2 which move in opposite directions with velocities v1 and v2. The ratio of their kinetic energies \(\frac{E_1}{E_2}\) is:

A particle of mass m oscillates with simple harmonic motion between points x1 and x2, the equilibrium position being O. Its potential energy is plotted. It will be as given below in the graph:

The potential energy of a simple harmonic oscillator when the particle is half way to its end point is:
In case of a forced vibration, the resonance wave becomes very sharp when the:

Two spheres of masses m and M are situated in the air and the gravitational force between them is F. The space around the masses in now filled with a liquid of specific density 3. The gravitational force will now be:

When a long spring is stretched by 2 cm, its potential energy is U. If the spring is stretched by 10 cm, the potential energy stored in it will be:
Barrier potential of a p-n junction diode does not depend on:
If a full wave rectifier circuit is operating from 50 Hz mains, the fundamental frequency in the ripple will be:
A n-p-n transistor conducts when
Reverse bias applied to a junction diode

A thin circular ring M and radius ‘r’ is rotating about its axis with a constant angular velocity ω. Four objects each of mass m, are kept gently to the opposite ends of two perpendicular diameters of the ring. The angular velocity of the ring will be - 

In which of the following systems will be radius of the first orbit (n=1) be minimum: