NEET (UG) entrance exam Question Bank Solutions

The amplitude and the periodic time of an S.H.M are 5 cm and 6 s respectively. At a distance of 2.5 cm from the mean position, the phase will be: 

Direction of the first secondary maximum in the Fraunhoffer diffraction pattern at a single slit is given by (a is the width of the slit):

Photoelectric emission is observed from a metallic surface for frequencies ν₁ and ν₂ of the incident light (ν₁ > ν₂). If the maximum value of kinetic energy of the photoelectrons emitted in the two cases are in the ration 1 : n then the threshold frequency of the metallic surface is ______.

Faraday's laws are consequences of the conservation of ______

A metallic wire of 1 m length has a mass of 10 × 10⁻³ kg. If the tension of 100 N is applied to a wire, what is the speed of the transverse wave?

An athlete completes one round of a circular track of radius R in 80 sec. What will be his displacement at the end of 4 min 60 seconds?

A ball rolls of the top of the stairway with a horizontal velocity u ms⁻¹. If the steps are h m high and b m wide, the ball will hit the edge of the n^th step, if:

Which of the following device is used to study the spectra of light?

The speed of a transverse wave in an elastic string is v₀. If the tension in the string is reduced to half, then the speed of the wave is given by:

The electron concentration in an n-type semiconductor is the same as the hole concentration in a p-type semiconductor. An external field (electric) is applied across each of them. Compare the currents in them.

The equivalent capacitance of the combination shown in the figure is ______.

The electron concentration in an n-type semiconductor is the same as the hole concentration in a p-type semiconductor. An external field (electric) is applied across each of them. Compare the currents in them.

A car starts from rest and accelerates at 5 m/s². At t = 4 s, a ball is dropped out of a window by a person sitting in the car. What is the velocity and acceleration of the ball at t = 6 s? (Take g = 10 m/s²)

A particle moving in a circle of radius R with a uniform speed takes a time T to complete one revolution.

If this particle were projected with the same speed at an angle ‘θ’ to the horizontal, the maximum height attained by it equals 4R. The angle of projection, θ, is then given by ______.

The equivalent capacitance of the combination shown in the figure is ______.

The electron concentration in an n-type semiconductor is the same as the hole concentration in a p-type semiconductor. An external field (electric) is applied across each of them. Compare the currents in them.

A particle moving in a circle of radius R with a uniform speed takes a time T to complete one revolution.

If this particle were projected with the same speed at an angle ‘θ’ to the horizontal, the maximum height attained by it equals 4R. The angle of projection, θ, is then given by ______.

A car starts from rest and accelerates at 5 m/s². At t = 4 s, a ball is dropped out of a window by a person sitting in the car. What is the velocity and acceleration of the ball at t = 6 s? (Take g = 10 m/s²)

The stress-strain curves are drawn for two different materials X and Y. It is observed that the ultimate strength point and the fracture point are close to each other for material X but are far apart for material Y. We can say that materials X and Y are likely to be (respectively). 

A point object moves along an arc of a circle of radius 'R'. Its velocity depends upon the distance covered 'S' as V = `Ksqrt(S)` where 'K' is a constant. If 'e' is the angle between the total acceleration and tangential acceleration, then