X-rays, gamma rays and microwaves travelling in vacuum have
| X-rays, gamma rays and microwaves travelling in vacuum have
A. same wavelengths but different velocities
B. same frequency but different velocities
C. same velocity but different wavelengths
D. same velocity and same frequency
Please scroll down to see the correct answer and solution guide.
Right Answer is: C
SOLUTION
CONCEPT:
- Electromagnetic (EM) spectrum: The electromagnetic (EM) spectrum is the range of all types of EM radiation arranged according to frequency or wavelength.
- In order of decreasing wavelength or increasing frequency these are:
- radio waves radiation, micro waves radiation, infrared, visible light, ultraviolet, X-rays and gamma rays.
- In a vacuum, all EM radiations travel at the same speed irrespective of the wavelength or frequency of the wave.
EXPLANATION:
- Since all EM radiations travel at the same speed, X-rays, gamma rays and microwaves will travel at same speed.
- Since every EM radiations have different wavelengths according to their energy level, X-rays, gamma rays and microwaves will have different wavelengths. So the correct answer is option 3.
