NEET (UG) entrance exam Question Bank Solutions for Physics

A simple harmonic motion is given by, x = 2.4 sin ( 4πt). If distances are expressed in cm and time in seconds, the amplitude and frequency of S.H.M. are respectively, 

A point source of light S is placed in front of two large mirrors as shown. Which of the following observers will see only one image of S?

Huygen's conception of secondary waves ______.

A parallel beam of monochromatic light of wavelength 5000 Å is incident normally on a single narrow slit of width 0.001 mm. The light is focused by a convex lens on a screen placed on the focal plane. The first minima will be formed for the angle of diffraction equal to ______.

The dimensions of magnetic flux are ______

The unit of magnetic flux in SI is ______

When a Van der Waal's gas undergoes free expansion, then its temperature ______.

Which of the following is the unit of displacement current?

A body oscillates with SHM according to the equation x = 5 cos `(2π"t" + π/4)`. Its instantaneous displacement at t = 1 sec is:

Between the plates of parallel plate condenser there is 1 mm thick medium shoot of dielectric constant 4. It is charged at 100 volt. The electric field in volt/meter between the plates of capacitor is ______.

Two similar conducting spheres having charge+ q and -q are placed at 'd' seperation from each other in air. The radius of each ball is r and the separation between their centre is d (d >> r). Calculate the capacitance of the two ball system ______.

The dimensional formula of magnetic flux is ______.

A parallel plate capacitor of plate separation 2 mm is connected in an electric circuit having source voltage 400 V. What is the value of the displacement current for 10^-6 second if the plate area is 60 cm²?

According to Maxwell's hypothesis, a changing electric field gives rise to ______.

A capacitor of capacitance ‘C’, is connected across an ac source of voltage V, given by V = V₀ sinωt The displacement current between the plates of the capacitor would then be given by ______.

Match Column - I and Column - II and choose the correct match from the given choices.

A spring is stretched by 5 cm by a force of 10 N. The time period of the oscillations when a mass of 2 kg is suspended by it is ______.

A capacitor of capacitance ‘C’, is connected across an ac source of voltage V, given by V = V₀ sinωt The displacement current between the plates of the capacitor would then be given by ______

A spring is stretched by 5 cm by a force of 10 N. The time period of the oscillations when a mass of 2 kg is suspended by it is ______

Match Column - I and Column - II and choose the correct match from the given choices.