Question

A 1000 W transmitter works at a frequency of 880 kHz. The number of photons emitted per second is

• A. $1.7\times {10}^{28}$
• B. $1.7\times {10}^{34}$
• C. $1.7\times {10}^{23}$
• D. $1.7\times {10}^{25}$

Answer 1

The correct option is B $1.7\times {10}^{34}$

Frequency of radio transmitter$=880$kHz

Power$=1000$w

$\therefore n=\frac{P}{nv}=\frac{1000}{6.6\times {10}^{-34}\times 880\times {10}^3}$

$n=1.721\times {10}^{34}$.