• # question_answer A radio transmitter operates at a frequency of 880 kHz and a power of 10 kW. The number of photons emitted per second are            A) $1.72\times {{10}^{31}}$ B) $1327\times {{10}^{34}}$ C) $13.27\times {{10}^{34}}$      D) $0.075\times {{10}^{-34}}$

[a] Number of photons emitted per second $n=\frac{p}{h\nu }=\frac{10\times {{10}^{3}}}{6.6\times {{10}^{-34}}\times 880\times {{10}^{3}}}=1.72\times {{10}^{31}}$