Current Electricity — Physics STD 12 Science — Question

The process of radioactive radiations remains unaffected due to:

When a particle travels, then a wave is linked with the particle. The wavelength of the wave is expressed as :

The minimum energy required for the electron emission from the metal surface can be supplied to the free electrons by which of the following physical processes?

Visible light passing through a circular hole forms a diffraction disc of radius 0.1mm on a screen. If an X-ray is passed through the same setup, the radius of the diffraction disc will be:

1. zero
2. < 0.1mm
3. 0.1mm
4. > 0.1m

The displacement of a particle in simple harmonic motion in one time period is:

1. A
2. 2A
3. 4A
4. zero.

Resistance of the metal increases with temperature because:

The Lenz's law is based on which of the following physical quantity?

In a pure capacitive A.C circuit current and voltage differ in phase by.