A wave of frequency 100 Hz travels along a string towards its fixed end. When this wave travels back, after reflection, a node is formed at a distance of 10 cm from the fixed end. The speed of the wave (incident and reflected) is
A
20 
B
40 
C
5 
D
10 
.
.
Text Solution
Verified by ExpertsThe correct answer is:
A
Frequency 
Hz and distance from fixed end 
cm 
.
When a stationary wave is produced, the fixed end behaves as a node.
Thus wavelength 
Therefore velocity 
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