The speed of electromagnetic waves is sa

CUET Preparation Today

Start Free Mocks

Home Questions 7PQE6KDYVE

Target Exam

CUET

Subject

Physics

Chapter

Electromagnetic Waves

Question:

The speed of electromagnetic waves is same for :

Options:

all wavelengths

all media

all intensities

all frequencies

Correct Answer:

all intensities

Explanation:

Speed of electromagnetic waves is dependent upon medium as,

$V = \frac{c}{n}$

where $c$ is the speed of light in vacuum, $n$ is the refractive index in the medium.

Speed is dependent on wavelength and frequency as

v = λ ν

It is independent of intensity.