Which of the following are the characteristics of electromagnetic waves ?
- They are elastic waves.
- They can also move in vacuum.
- They have electric and magnetic components which are mutually perpendicular.
- They move with a speed equal to 3 lakh meters per second.
Select the correct answer using the code given below :
1, 2, 3 and 4
1, 2 and 4 only
2 and 3 only
3 and 4 only
Answer is Right!
Answer is Wrong!
This question was previously asked in
UPSC NDA-2 – 2019
Electromagnetic waves are transverse waves consisting of oscillating electric and magnetic fields that propagate through space at the speed of light, even in a vacuum. They do not require a material medium, unlike mechanical waves (like sound or elastic waves). The electric and magnetic fields are perpendicular to each other and to the direction of wave propagation.