Question

trough of wave Acts as
(A) concave lens
(B) convex lens
(C) convex mirror
(D ) plane mirror​

Answer 1

Answer:

(A)concave lens

hope it help you dear............

Explanation:

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Answer 2

The correct answer is option (A) Concave lens

EXPLANATION

• The lowest point of a wave is called as a trough .
• A concave lens is a lens having one or both surface curved inward. Concave lens are also known as diverging lens.
• This means that they spreads or deflect the ray of light refracted through it.
• Concave lens are used in telescopes, eye-glasses to correct myopia, cameras and laser beams etc.
• .The water acts a lens to produce design or patterns when light is passed through it.
• A water wave consists of highest position known as the crest and the lowest position, known as the trough.
• On the white paper the crest and trough is shown as alternative light and dark lines.
• The trough of the water wave acts as a concave lens and the crest acts a convex lens.

Hence, The answer is option (A) Concave lens

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