MCQ
On what basis is the classification of electromagnetic waves done?
- AElectromagnetic spectrum
- BElectric field
- CMagnetic field
- DPropagation constant
Explanation:
The classification of electromagnetic waves done according to the frequency called the electromagnetic spectrum. The basic difference various type of electromagnetic waves lies in their wavelength or frequency since all of them travel through vacuum at the same speed and also, the waves differ in their mode of interaction with matter.
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Statement-2: NOT gate inverts the input order.
A piece of fuse wire melts when a current of 15 ampere flows through it. With this current, if it dissipates 22.5 W, the resistance of fuse wire will be
|
(a) Zero |
(b) 10 Ω |
(c) 1 Ω |
(d) 0.10 Ω |