The equation of a plane progressive wave is Y=3sinπt−x10 when it is reflected at rigid support, its amplitude becomes 1/3rd of its previous value. The equation of the reflected wave is :
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a
Yr=2sinπt+x10
b
Yr=sinπt+x10
c
Yr=−sinπt+x10
d
Yr=sinπ−t+x10
answer is C.
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Detailed Solution
Phase change of π radians will take place & direction of propagation is reversed.