defence exam Army Havildar SAC Mock Test Series 2025 Physics Electromagnetic Waves The Traveling Electromagnetic Wave
Which of the following statements is/are correct?
(a) Electromagnetic waves have different speeds in different mediums.
(b) Sounds have different speeds in different mediums.
1
Neither (a) nor (b)
2
(a) only
3
(b) only
4
Both (a) and (b)