NEET (UG) entrance exam Question Bank Solutions for Physics

In amplitude modulation ______.

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:   

At what depth below the surface of the earth will acceleration due to gravity g be half its value 1600 km above the surface of the earth?

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 ______.

At what altitude (h) above the earth's surface would the acceleration due to gravity be `1/4` of its value at the earth's surface?

A monoatomic gas molecule has ______. 

Young's modulus of a perfectly rigid body is ______.

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. ______

Two monoatomic gas A and B occupying the same volume V are at the same temperature T and pressure P. If they are mixed, the resulting mixture has volume V and temperature T. The pressure of the mixture is:

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 ______.

Which of the following statement given below are correct for monoatomic gas?

I. C_v = `3/2 "R"`

II. C_p = `5/2 "R"`

III. Cp − C_v = 2R

IV. `"C"_"p"/"C"_"v" = 5/3`