List of top Physics Questions asked in Bihar Board Class XII

The equivalent of decimal number 27 in binary number system will be:
Define intensity of electric field at any point. Write down its S.I. unit.
Width of forbidden energy gap in the semiconductor is approximately:
Number of neutrons in an atom of \(^{230}_{90}\mathrm{Th}\) is:
The S.I. unit of decay constant is:
The half-life of a radioactive substance is:
P-N junction diode is used as:
Instrument used to increase input voltage/current is called:
If in a logic gate output \(Y\) is obtained by the product of its both inputs \(A \cdot B\), then the gate is:
Cathode rays are group of:
The de Broglie wavelength is:
Convex lens is used in:
The colour of the sky is blue due to:
The fringe width in interference of light due to two coherent sources is:
Two sources of monochromatic light are coherent when their:
Photocell is based on:
Powers of two lenses kept in contact are \( P_1 \) and \( P_2 \). The power of the equivalent lens will be:
The image formed in a compound microscope is:
The image of any object formed at the retina of the human eye is:
A large virtual image of an object is formed by:
The wavelength of which colour is minimum?
Which causes the formation of rainbow?
If magnetic field \( B \) is perpendicular to surface area vector \( \mathbf{ds} \), then the magnetic flux on area \( ds \) will be:
What value of alternating current is measured by a hot wire ammeter?
Mean value of alternating current in a full cycle is: