Consider ten identical sources of sound all giving the same frequency but having phase angles which are random. If the average intensity of each source is \[{{I}_{0}}\], the average of resultant intensity I due to all these ten sources will be [MP PMT 1990]

Consider ten identical sources of sound all giving the same frequency

1.	Consider ten identical sources of sound all giving the same frequency but having phase angles which are random. If the average intensity of each source is \[{{I}_{0}}\], the average of resultant intensity I due to all these ten sources will be [MP PMT 1990]
A.	\[I=100\,{{I}_{0}}\]
B.	\[I=10\,{{I}_{0}}\]
C.	5/6
D.	\[I=\sqrt{10}\,{{I}_{0}}\]
Answer» C. 5/6

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Consider ten identical sources of sound all giving the same frequency but having phase angles which are random. If the average intensity of each source is \[{{I}_{0}}\], the average of resultant intensity I due to all these ten sources will be [MP PMT 1990]

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