NEET (UG) entrance exam Question Bank Solutions

The relation between refractive index of the medium and angle of polarisation is called

The minimum energy required to remove an electron is called ______.

Energy of an electron at infinity from nucleus is ______.

A force F = 20 + 10y acts on a particle in y-direction where F is in newton and y in metre. Work done by this force to move the particle from y – 0 to y – 1 m is:

In a semiconductor diode, the barrier potential offers opposition to only

In amplitude modulation ______.

Three uniform spheres, each having mass m and radius r, are kept in such a way that each touches the other two. The magnitude of the gravitational force on any sphere due to the other two is

A 20 cm long capillary tube is dipped in water. The water rises up to 8 cm. If the entire arrangement is put in a freely falling elevator, then the length of the water column in the capillary tube will be:   

Equation of a plane progressive wave is given by  y = 0.6 sin2π `(t - x/2)`. On reflection from denser medium its amplitude become `2/3` of the amplitude of the incident wave. The equation of the reflected wave is

Figure here shows an incident pulse P reflected from a rigid support. Which one of A, B, C, D represents the reflected pulse correctly?

The work done by an applied variable force, F = x + x³ from x = 0 m to x = 2m, where x is displacement, is:

The magnetic flux linked with a coil in Wb is given by the equation Φ = 3t² + 4t + 9. Then the magnitude of induced emf at t = 2 sec will be ______.

The amplitude of a damped oscillator becomes half in one minute. The amplitude after 3 minutes will be `1/"X"` times the original, where X is ______. 

The dimensions of magnetic flux are ______

Energy levels A, B, C of acertain atom corresponding to increasing value of energy, i.e., E_A< E₈ < E_e. If λ₁, λ₂ and λ₃ are the wavelength of radiations corresponding to the transitions C to B, B to A and C to A respectively, which of the following statements is correct?

Avalanche breakdown is due to ______.

The unit of magnetic flux in SI is ______

Motional e.m.f is the induced e.m.f. ______

A lawn roller is pulled along a horizontal surface through a distance of 20 m by a rope with a force of 200 N. If the rope makes an angle of 60° with the vertical while pulling, the amount of work done by the pulling force is:

The dimensional formula of magnetic flux is ______.