Electromagnetic Waves Quiz Questions and Answers - 1
_____ is used to preserve food items.
(C) gamma rays
The energy of electromagnetic waves in due to _____ energy of the oscillating charge.
Electromagnetic waves are produced by
(A) accelerated charges
(B) molecules of hot bodies
(C) electronic device
(D) atoms and molecules in an electrical discharge
The instrument to determine the optical rotation produced by a substance is
_____ is used as sun glasses.
(B) Pile of plates
(C) Nicol prism
(D) None of the above
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