List of top Physics Questions

Which of the following physical quantities is a vector?
LASER action needs
Light is a transverse wave because it shows
The ratio of electric force and gravitational force acting between two charges is in the order of
The half-life of a radioactive isotope (\(^{210}\)Bi) is 5 days. The fraction of the nuclei undecayed at the end of 20 days will be
Which of the following has the highest penetrating power?
The unit of radioactivity is
The dispersive power of a prism depends on
The phase difference between electric wave and magnetic wave in the electromagnetic wave is
When the distance between source of light and screen is increased, then fringe width
Which range of frequency is used in TV transmission?
The self-inductance of a choke coil is 5 henry. The current through it is increasing at a rate of 2 AS\(^{-1}\). The self-induced emf in the choke coil will be
Three capacitors of capacitance 6 µF are available. The minimum and maximum capacitances obtained are
The radius of a circular current loop is made double and the current is made half. The magnetic moment of the loop will become
The root mean square (r.m.s) value of alternating current equation I = 60 sin 100 πt is
The impedance of L-R circuit is
Magnetic moment of the earth is
The radius of curvature of each surface of a biconvex lens is 20 cm and the refractive index of the material of the lens is 1.5. The focal length of the lens is
The function of moderator in nuclear reactor is to
The impurity element used for p-type semiconductor is
Diode is used as
Nickel is
The angle between magnetic meridian and geographical meridian is called
Which physical quantity will be the same for an electron and a photon of the same wavelength?
The net charge on a charged capacitor is