Question

Which of the following is NOT true for electromagnetic waves?
Select one:
a. they transport momentum
b. they transport energy
c. they travel at different speeds in vacuum, depending on their frequency
d. They can be reflected​

Answer 1

Option c) is correct ✔️

• Electromagnetic waves are a part of spectrum. They are transverse waves having components of electric field and magnetic field.

• Some of the examples are : X Rays, Gamma Rays, Radio waves, Visible spectrum (i.e. colours of rainbow) , Micro-waves , etc.

• They are arranged on the basis of their frequencies and wavelength.

However, in vacuum , they all travel with the same speed of 3 × 10⁸ m/s.

• Their individual velocities change only after refraction into other material media.

$\star$ Hope It Helps

Answer 2

Answer:

Explanation: because at vacuum, electromagnetic waves has the same speed.