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A radio transmitter radiates 1 kW power ...

A radio transmitter radiates `1 kW` power at a wavelength `198.6 m`. How many photons does it emit per second ?

A

`10^(10)`

B

`10^(20) `

C

` 10^(30)`

D

`10^(40)`

Text Solution

Verified by Experts

The correct Answer is:
C
`n=(p)/(E) =( p)/(hv)=(p lambda )/( hc )=( 1000 xx 198.6)/(6.6 xx 10^(-34) xx 3 xx 10^(8)) =10^(30)`
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-COMMUNICATION SYSTEM-Exercise 1
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