Mock Test 1 — Electromagnetic Waves

Displacement current was introduced by:

EM waves were experimentally produced by:

The relation between speeds of $\vec{E}$ and $\vec{B}$ in EM wave:

Sky waves consist of:

Region of EM spectrum used for satellite communication:

The intensity of EM wave in vacuum is given by:

Production of X-rays involves:

The frequency of microwaves is approximately:

UV radiation has wavelength approximately:

The momentum of EM wave with energy $10^{-4}$ J:

EM wave with $E_0 = 24$ V/m has $B_0 = \_ \times 10^{-8}$ T (integer):

The wavelength of $1$ GHz EM wave in vacuum (in cm, integer):

Radiation pressure on a perfectly reflecting surface due to EM wave of intensity $6 \times 10^8$ W/m² (in Pa, integer):

Assertion (A): Microwaves are preferred for radar. Reason (R): They travel in straight lines and can be focused into narrow beams.

Assertion (A): EM waves can travel through vacuum. Reason (R): EM waves consist of oscillating electric and magnetic fields, which do not require a medium.