Electromagnetic Waves  MCQs

MCQs of Electromagnetic Waves

Showing 111 to 112 out of 112 Questions
111.
Give the name of the gas which damage ozone layer.
(a) Kriptone
(b) Neon
(c) Freon
(d) Argon
Answer:

Option (c)

112.
For communication which electromagnetic waves are used by cellular phones ?
(a) Microwaves
(b) Infrared waves
(c) Ultraviolet waves
(d) Ultra high frequency
Answer:

Option (d)

Showing 111 to 112 out of 112 Questions