List of top Physics Questions

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:
A large virtual image of an object is formed by:
The image of any object formed at the retina of the human eye is:
What value of alternating current is measured by a hot wire ammeter?
Mean value of alternating current in a full cycle is:
If the phase difference between alternating current and e.m.f is \(\phi\), then the value of power factor is:
In an AC circuit, power is lost in only:
An alternating electric current is represented by the equation \( i = 0.6 \sin 100 \pi t \). The frequency of the alternating current is:
Current used in electroplating is:
If magnetic field \( B \) is perpendicular to surface area vector \( \mathbf{ds} \), then the magnetic flux on area \( ds \) will be:
What is produced by an induction coil?
The magnetic field produced at the centre of a current-carrying circular coil is:
Which of the following shows hysteresis?
The energy density of magnetic field \( B \) is:
A galvanometer is converted into an ammeter by adding:
On dividing any magnet of magnetic moment \( M \) parallel to its length into \( n \) equal pieces, the moment of each piece will be:
The value of magnetic potential at a distance \( r \) from a pole strength \( m \) is:
A magnet is situated near a closed conductor. Current can be produced in the conductor if:
On oscillating any metallic sphere in a magnetic field, its oscillatory motion is:
The nature of electron beams moving with uniform velocity in the same direction will be:
The value of current obtained in a moving coil galvanometer is proportional to:
The value of torque \( \boldsymbol{\tau} \) experienced by a current loop of magnetic moment \( \mathbf{m} \) placed in a magnetic field \( \mathbf{B} \) is:
The working principle of a dynamo is based on:
The SI unit of self-induction is: