If a source of electromagnetic radiation having power $15 kW$ produces $10^{16}$ photons per second, the radiation belongs to a part of spectrum is :
(Take Planck constant $h = 6 \times 10^{- 34} J s)$

Question

If a source of electromagnetic radiation having power 15 kW produces 10 16 photons per second, the radiation belongs to a part of spectrum is : (Take Planck constant h = 6 × 10 - 34 J s )

TestHub · Accepted Answer

As energy of one photon is given by E = Power Photon frequency Or, E = h ν = 15 × 10 3 10 16 So, frequency of ray is ν = 15 × 10 - 13 6 × 10 - 34 = 2 . 5 × 10 21 Hz . Thus, the radiation belongs to gamma rays.

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