A radio transmitter operates at a frequency of `880 kHz` and a power of `10 kW`. The number of photons emitted per second are

Options

A. `1.72 xx 10^(31)`
B. `1.327 xx 10^(25)`
C. `1.327 xx 10^(37)`
D. `1.327 xx 10^(45)`

Answer

A

Explanation

Number of photons emitted per sec,
`n = ("Energy")/("Energy of photon") = P/(hv)`
`= 10000/(6.6 xx 10^(-34) xx 880 xx 10^(3)) = 1.72 xx 10^(31)`