List of top Physics Questions asked in NEET (UG)

The potential energy of a long spring when stretched by 2 cm is U. If the spring is stretched by 8 cm, potential energy stored in it will be:

The angular acceleration of a body, moving along the circumference of a circle, is:

As shown in the figure, a very long conducting wire is bent in a semi-circular shape from A to B. The magnetic field at point P for steady current configuration is given by:
a very long conducting wire is bent in a semi-circular shape from A to B
A metal wire has mass (0.4±0.002)g, radius (0.3±0.001)mm and length (5±0.02)cm. The maximum possible percentage error in the measurement of density will nearly be:
A bullet is fired from a gun at the speed of 280 ms-1 in the direction 30° above the horizontal. The maximum height attained by the bullet is
(g = 9.8 ms-2, sin 30° = 0.5)
Calculate the maximum acceleration of a moving car so that a body lying on the floor of the car remains stationary. The coefficient of static friction between the body and the floor is 0.15 (g=10ms-2).

For the following logic circuit, the truth table is:

logic circuit

The ratio of radius of gyration of a solid sphere of mass M and radius R about its own axis to the radius of gyration of the thin hollow sphere of same mass and radius about its axis is:
An electric dipole is placed as shown in the figure.
 
An electric dipole is placed as shown in the figure
The electric potential (in 102 V) at point P due to the dipole is (ε0 = permittivity of free space and \(\frac{1}{4\pi\epsilon_0}=K\)):

An electric dipole is placed at an angle of 30° with an electric field of intensity 2x105 NC-1. It experiences a torque equal to 4 Nm. Calculate the magnitude of charge on the dipole, if the dipole length is 2cm.

A bullet from a gun is fired on a rectangular wooden block with velocity u. When the bullet travels 24 cm through the block along its length horizontally, velocity of bullet becomes \(\frac{u}{3}\). Then it further penetrates into the block in the same direction before coming to rest exactly at the other end of the block. The total length of the block is:
Resistance of a carbon resistor determined from colour codes is (22000±5%)Ω. The colour of third band must be:

The equivalent capacitance of the system shown in the following circuit is:

equivalent capacitance

Two transparent media. A and B are separated by a plane boundary. The speed of light in those media are 1.5 × 108 m/s and 2.0 × 108 m/s, respectively. The critical angle for a ray of light for these two media is:
A ball is projected with a velocity, 10 ms-1, at an angle of 60° with the vertical direction. Its speed at the highest point of its trajectory will be:
A nucleus of mass number 189 splits into two nuclei having mass number 125 and 64. The ratio of radius of two daughter nuclei respectively is:
A big circular coil of 1000 turns and average radius 10 m is rotating about its horizontal diameter at 2 rad s-1. If the vertical component of earth’s magnetic field at that place is 2 × 10-5 T and electrical resistance of the coil is 12.56 Ω, then the maximum induced current in the coil will be:

Choose the correct answer from the options given below:

List – IList – II
(a) Gravitational constant(i) [L2T-2]
(b) Gravitational potential energy(ii) [M-1L3T-2]
(c) Gravitational potential(iii) [LT-2]
(d) Gravitational intensity(iv) [ML2T-2
A series LCR circuit with inductance 10 H, capacitance 10 μF, resistance 50 Ω is connected to an ac source of voltage, V =200 sin(100 t) volt. If the resonant frequency of the LCR circuit is vo and the frequency of the ac source is v, then:
Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R). 
Assertion (A): The stretching of a spring is determined by the shear modulus of the material of the spring. 
Reason (R): A coil spring of copper has more tensile strength than a steel spring of same dimensions.
In the light of the above statements choose the most appropriate answer from the options given below:
The area of rectangular field (in m2) of length 55.3 m and breadth 25 m after rounding off the value for correct significant digits is:
If a soap bubble expands, the pressure inside the bubble:
Two resistors of resistances, 100 Ω and 200 Ω are connected in parallel in an electrical circuit. The ratio of thermal energy developed in 100 Ω to that in 200 Ω in a given time is
A light ray falls on a glass surface of refractive index √3, at an angle 60°. The angle between the refracted and reflected rays would be:
In the given nuclear reaction, the element X is: 22 11 Na → X + x2 + v