List of top Physics Questions

Which one of the following frequency ranges is used for TV transmission?
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 one of the following is not a type of radioactive decay?
Which of the following is chargeless particle?
What is the main difference between isotopes of the same element?
Reverse biased diode is
In n-type semiconductor the minority charge carrier is/are
When boron is mixed as impurity in silicon, then resultant matter is
What type of wave is used in fibre optic communication?
Boolean expression of NAND gate is
Which logic gate's output is true only if the inputs are different?
Which of the following is used to reduce chromatic aberration in lenses?
Which of the following cannot be polarized?
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
A person uses spectacles (lens) of +2D power. His defect of vision is.
Power of a convex lens is 2 dioptre. Its focal length will be
The bubble of soap appears coloured due to
If two converging lenses of equal focal length \(f\) are kept in contact, then the focal length of the combination will be
The wavelength of de Broglie wave associated with any moving particle does not depend on
The formula of kinetic mass of photon is
The speed of electromagnetic wave in any material medium does not depend on.
In polarised light the angle between plane of vibration and plane of polarization is
In the phenomenon of photoelectric emission, on increasing the intensity of incident light, the photoelectric current
Which of the following is not an electromagnetic wave?
The distance between two equal and opposite charges of \( 0.2 \mu C \) will be 3.0 cm. Their electric dipole moment will be