NEET (UG) entrance exam Question Bank Solutions

A bar magnet of magnetic moment 3.0 Am is placed in a uniform magnetic field of 2 × 10^-5T. If each pole of the magnet experience a force of 6 × 10^-4 N, the length of the magnet is ______.

Radium nucleus was moving with constant velocity v. It disintegrates into He and Rn. He and Rn move as shown in the figure. The CM of the system of He and Rn will move along ...A ... after the explosion of Ra. Here, A refers to:

For a metallic wire, the ratio V/I ______

(V = the applied potential difference, I = current flowing)

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

SONAR emits which of the following waves?

If λ_v, λ_x and λ_m Am represents the wavelength of visible light, x-ray and microwaves respectively, then ______.

When a particle executing S.H.M oscillates with a frequency v, then the kinetic energy of the particle? 

The wavelength of light used in young.'s double slit experiment is λ. The intensity at a point on the screen is I where the path difference is λ/6. If I₀ denotes the maximum intensity, then the ratio of I and I₀ is ______.

Magnetic dipole moment is a ______

Lenz's law gives ______

All components of the electromagnetic spectrum in a vacuum have the same ______

When the displacement of a particle executing simple harmonic motion is half its amplitude, the ratio of its kinetic energy to potential energy is ______.

If a body is executing simple harmonic motion and its current displacements is `sqrt3/2` times the amplitude from its mean position, then the ratio between potential energy and kinetic energy is:

A body is executing simple harmonic motion with frequency ‘n’, the frequency of its potential energy is ______.

A body is executing simple harmonic motion with frequency ‘n’, the frequency of its potential energy is ______.

A parallel plate capacitor has a uniform electric field ‘`vec "E"`’ in the space between the plates. If the distance between the plates is ‘d’ and the area of each plate is ‘A’, the energy stored in the capacitor is ______

(ε₀ = permittivity of free space)

A parallel plate capacitor has a uniform electric field `overset(->)("E")` in the space between the plates. If the distance between the plates is ‘d’ and the area of each plate is ‘A’, the energy stored in the capacitor is ______

(ε₀ = permittivity of free space)

A body is executing simple harmonic motion with frequency ‘n’, the frequency of its potential energy is ______.

Vectors `vecA = 5hati - ahatj + 3hatk` and `vecB = 10hati + 8hatj + bhatk` are parallel to each other, then values of 'a' and 'b' are

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)