List-I | List-II | ||
(P) | At t=0.2s, the magnitude of induced emf in volt | (1) | 0.08 |
(Q) | At t=0.2s, the magnitude of magnetic force in N | (2) | 0.14 |
(R) | At t=0.2s, the power dissipated at heat in watt | (3) | 1.20 |
(S) | The magnitude terminal velocity of the rod in ms\(^{-1}\) | (4) | 0.12 |
(5) | 2.00 |
The term used by scientists to describe the entire range of light that exists is the electrostatic spectrum. Light is a wave of alternating electric and magnetic fields. The propagation of light doesn't vary from waves crossing an ocean. Like any other wave, light also has a few fundamental properties that describe it. One is its frequency. The frequency is measured in Hz, which counts the number of waves that pass by a point in one second.
The electromagnetic waves that your eyes detect are visible light and oscillate between 400 and 790 terahertz (THz). That’s several hundred trillion times a second.