NEET (UG) entrance exam Question Bank Solutions

The displacement of particle is given by x = `2/lambda (1 - e^(-lambdat))`, the acceleration of particle at 2s when λ = 2s^–1 will be (Take `l`n 0.018 = – 4)

A metal plate measuring 1 cm × 20 cm × 40 cm is embedded with a side of 20 cm × 1 cm into a wall at one end and is pulled by a force 1.6 × 10⁶ N parallel to the 1 cm side at the other end. The angle through which the plate is turned is (11 = 40 × 10⁹ Pa). 

Assertion: In interference, intensity of light at a point changes with time periodically.

Reason: Light energy is propagated exactly in straight line

The wavelength of the matter wave is dependent on ______.

A vessel at rest explodes into three pieces. Two pieces having equal masses fly-off perpendicular to one another with the same velocity 30 meter per second. The third piece has three times mass of each of other piece. The magnitude and direction of the velocity of the third piece will be

The potential energy is

When a ceiling fan is switched on, it makes 10 rotations in the first 3 second. How many rotations will it make in the next 3 second? (Assume uniform angular acceleration)

For a chosen non-zero value of voltage, there can be more than one values of current in

Broadcast band in which FM lies is ______.

The escape velocity from the surface of earth of mass 'M' and radius 'R' is 've'. The escape velocity from the surface of a planet whose mass and radius are 3 times that of the earth, will be

Which of the following is three-dimensional continuous charge distribution?

Two identical flutes produce fundamental notes of frequency 300 Hz at 27°C. If the temperature of air in one flute is increased to 31°C, the number of the beats heard per second will be

If the velocity of a car is given by V = (150 − 10x)^½ m/s. If a car retards their motion by applying brakes then what will be the acceleration?

Which of the following processes is reversible?  

If the last band on the carbon resistor is absent, then the tolerance is ______

Escape velocity from a planet is v_e. If its mass is increased to 8 times and its radius is increased to 2 times, then a new escape velocity would be ______.

Molar specific heat of water is C = 74.7 J/mol K, its value in cal/g K is ______. 

A 8 cm cube has its upper face displaced by 0.5 mm by a tangential force of 10 kN. What is the shear modulus of the cube?

A uniform electric field and a uniform magnetic field are produced, pointed in the same direction. An electron is projected with its velocity pointing in the same direction ______

In young 's double slit experiment, the phase difference between the light waves reaching third bright fringe from the central fringe will be ______. (λ = 6000 A)