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Question: A radio station is transmitting the waves of wavelength 300 m. Radiation capacity of the transmitter...

A radio station is transmitting the waves of wavelength 300 m. Radiation capacity of the transmitter is 10 kW. Find out the number of photons which are emitting per unit time –

A

1.5 × 1035

B

1.5 × 1031

C

1.5 × 1029

D

1.5 × 1033

Answer

1.5 × 1031

Explanation

Solution

P =nhcλt\frac{nhc}{\lambda t}

10 × 103 =n×6.6×10−34×3×108300×1\frac{n \times 6.6 \times 10^{- 34} \times 3 \times 10^{8}}{300 \times 1}