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

Question

A radio transmitter operates at a frequency 880 kHz and a power of 10 kW. The number of photons emitted per second is (A) 1.72 × 1031 (B) 1.327 × 1025 (C) 1.327 × 1037 (D) 1.327 × 1045

Tardigrade Admin · Accepted Answer

No. of photons emitted per sec, n=( text Power / text Energy of photon ) =(P/h v)=(10000/6.6 × 10-34 × 880 × 103) =1.72 × 1031

Q. A radio transmitter operates at a frequency $880 k Hz$ and a power of $10 kW$ . The number of photons emitted per second is

$1.72 \times 1 0^{31}$

$1.327 \times 1 0^{25}$

$1.327 \times 1 0^{37}$

$1.327 \times 1 0^{45}$

No. of photons emitted per sec,
$n = \frac{Power}{Energy of photon}$
$= \frac{P}{h v} = \frac{10000}{6.6 \times 1 0 ^{- 34} \times 880 \times 1 0 ^{3}}$
$= 1.72 \times 1 0^{31}$

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

1.72×1031

1.327×1025

1.327×1037

1.327×1045