List of top Physics Questions

What is the energy of a photon with a wavelength of 500 nm?
(Use \( c = 3 \times 10^8 \) m/s and \( h = 6.626 \times 10^{-34} \) Js)
Which of the following is chargeless particle?
Which one of the following frequency ranges is used for TV transmission?
Which one of the following is not a type of radioactive decay?
What type of wave is used in fibre optic communication?
In n-type semiconductor the minority charge carrier is/are
When boron is mixed as impurity in silicon, then resultant matter is
Boolean expression of NAND gate is
Which logic gate's output is true only if the inputs are different?
Reverse biased diode is
Which of the following cannot be polarized?
The bubble of soap appears coloured due to
Which of the following is used to reduce chromatic aberration in lenses?
Power of a convex lens is 2 dioptre. Its focal length will be
A convex lens is dipped in a liquid, whose refractive index is equal to the refractive index of the material of the lens. Then its focal length will
If two converging lenses of equal focal length \(f\) are kept in contact, then the focal length of the combination will be
A person uses spectacles (lens) of +2D power. His defect of vision is.
The wavelength of de Broglie wave associated with any moving particle does not depend on
The formula of kinetic mass of photon is
In the phenomenon of photoelectric emission, on increasing the intensity of incident light, the photoelectric current
In polarised light the angle between plane of vibration and plane of polarization is
The speed of electromagnetic wave in any material medium does not depend on.
Which of the following is not an electromagnetic wave?
In parallel combination of condensers, which quantity remains same for each condenser?
Two light waves of equal amplitude and equal wavelengths are superimposed. The amplitude of the resultant wave will be maximum when phase difference between them is