NEET (UG) entrance exam Question Bank Solutions

A bandwidth of 6 MHz is available for AM transmission. If the maximum audio signal frequency used for modulating the carrier is not to be exceeds 64 KHz. How many stations can be broadcast within this band simultaneously without interfering with each other?

The self-inductance depends upon ______.

Mean free path of molecules of a gas is inversely proportional to ______.

A cyclotron can accelerate ______.

In which one of the following, does the internal energy of the system remain constant?

In Davisson and Germer experiment, the tungsten filament is coated with ______.

Consider the following statements (A) and (B) and identify the correct answer.

1. A Zener diode is connected in reverse bias when used as a voltage regulator.
2. The potential barrier of the p-n junction lies between 0.1 V to 0.3 V.

A particle is released from height S from the surface of the Earth. At a certain height, its kinetic energy is three times its potential energy. The height from the surface of the earth and the speed of the particle at that instant are respectively ______.

The velocity of a small ball of mass M and density d, when dropped in a container filled with glycerine becomes constant after some time. If the density of glycerine is `"d"/2`, then the viscous force acting on the ball will be ______

From a circular ring of mass, ‘M’ and radius ‘R’ an arc corresponding to a 90° sector is removed. The moment of inertia of the remaining part of the ring about an axis passing through the centre of the ring and perpendicular to the plane of the ring is ‘K’ times ‘MR²’. Then the value of ‘K’ is ______.

From a circular ring of mass ‘M’ and radius ‘R’ an arc corresponding to a 90° sector is removed. The moment of inertia of the remaining part of the ring about an axis passing through the centre of the ring and perpendicular to the plane of the ring is ‘K’ times ‘MR²’. Then the value of ‘K’ is ______.

A particle is released from height S from the surface of the Earth. At a certain height, its kinetic energy is three times its potential energy. The height from the surface of the earth and the speed of the particle at that instant are respectively ______

The velocity of a small ball of mass M and density d, when dropped in a container filled with glycerine becomes constant after some time. If the density of glycerine is `"d"/2` , then the viscous force acting on the ball will be ______.

From a circular ring of mass ‘M’ and radius ‘R’ an arc corresponding to a 90° sector is removed. The moment of inertia of the remaining part of the ring about an axis passing  through the centre of the ring and perpendicular to the plane of the ring is ‘K’ times ‘MR² ’. Then the value of ‘K’ is ______.

A physical quantity of the dimensions of length that can be formed out of c, G and `e^2/(4piε_0)` is (c is velocity of light, G is universal constant of gravitation and e is charge):

A particle moves along x-axis obeying the equation x = t (t – 1)(t – 2), where x (in metres) is the position of the particle at any time t (in seconds). The displacement when the velocity of the particle is zero, is 

When a string is stretched by 0.5 cm, its potential energy is U. If the string is stretched by 2 cm, then its potential energy will be: 

When a string is stretched by 0.5 cm, its potential energy is U. If the string is stretched by 2 cm, then its potential energy will be: 

A rain drop of radius 0.3 mm has a terminal velocity in the air of 1 m/s. The viscosity of air is 18 x 10⁻⁵ poise. The viscous force on it is:  

If Young's double slit experiment is done with white light, which of the following statements will be true?