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Byju's Answer
Standard XII
Physics
Need for Intensity
As wave trave...
Question
As wave travels, intensity
A
increases
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B
remains same
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C
decreases
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D
becomes negative
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Solution
The correct option is
C
decreases
As the wave travels, intensity decrease though it should remain constant.
But intensity
=
energy flowing through a certain area in a given time.
Through time wave looses its energy, hencce intensity decreases.
∴
Option (C) is correct.
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