Question

In a vacuum, all electromagnetic waves have the same
A) Velocity
B) Wavelenth
C) Frequency
D) All the above

Answer 1

a vacuum, all electromagnetic waves have the same

A) Velocity

all electromagnetic waves moves with same velocity of 3.0*10^8

B) Wavelenth

all electromagnetic waves cannot have same wavelength hence it is false

C) Frequency

frequency of electromagnetic waves cannot be same

D) All the above

Option (a) is correct because in a vacuum , all electromagnetic waves have the same velocity.

all electromagnetic waves travel in same speed of 3.0*10^8.