Question Bank [ 2022 ] — Physics STD 12 Science — Question

A charged 10 microfarad capacitor is connected to an 81 mH inductor. What is the angular frequency of free oscillations of the circuit?

Define potential gradient of the potentiometer wire.

If a charge of \(50 \mu C\) is moving with speed of \(50 m / s\) parallel to the direction of magnetic field, find the mechanical force acting on charged particle.

What should be the slit width to obtain pronounced diffraction with a single slit illuminated by the light of wavelength λ?

A car is left in sunlight with all its windows closed on a hot day. After some time it is observed that the inside of the car is warmer than outside air. Why ?

What will happen to the angular speed of a conical pendulum if its length is increased from 0.5 m to 2 m, keeping other conditions the same?

In Young’s double-slit experiment, if there is no initial phase difference between the light from the two slits, a point on the screen corresponds to the 5th minimum. What is the path difference?

State the formula for the frequency of S.H.M in terms of force constant.

What happens to a ferromagnetic substance heated above Curie temperature?