Answer :
Final answer:
To calculate the number of photons emitted per second by a 50,000 W FM radio station broadcasting at 98.1 MHz, use the formula involving Planck's constant and frequency to find an approximate value of b) 1.42 x 10^25 photons emitted per second.
Explanation:
An FM radio station broadcasts at a frequency of 98.1 MHz and emits a signal of 50,000 W. To calculate the number of photons emitted per second, we need to use the formula:
Number of photons emitted per second = Power / Energy per photon
Energy per photon = Planck's constant × frequency
After substituting the values, the number of photons emitted per second is approximately 1.42 x 10^25, corresponding to answer option b).
