Target Exam

CUET

Subject

Physics

Chapter

Electromagnetic Waves

Question:

Choose the correct statements from the following:

A. Displacement current is due to time varying magnetic field.
B. The frequency of the electromagnetic wave naturally equals the frequency of oscillation of the charge.
C. Light carries energy from the Sun to the Earth.
D. Electromagnetic wave does not exert pressure.
E. Electromagnetic wave contains both electric and magnetic field.

Choose the correct answer from the options given below:

Options:

A, D and E only

C, D and E only

A, B, C and D only

B, C and E only

Correct Answer:

B, C and E only

Explanation:

The correct answer is Option (4) → B, C and E only

(B) The frequency of an EM wave is determined by the oscillation of the source charge, if a charge oscillates at certain frequency, it generates an EM wave with same frequency.

(C) Light, is a electromagnetic wave, carries energy through radiation from sun to the earth.

(E) An electromagnetic wave consists of a oscillating electric and magnetic fields that are perpendicular to each other.