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Grade: 11
        
A 1kW radio transmitter operates at a frequency of 880 Hz. How many photons per second does it emit?
3 months ago

Answers : (1)

Vikas TU
8845 Points
							
Hii 
Energy of a radiation = hv
v = 800 Hz
Putting the value of h and v
E= 5.3 * 10-31 Joules
Power of radio transmitter = 1000 watts = 1000 joules/ sec
No. of photons which makes up an energy of 1000 joules is :
(1000 joules * 1 photon) / 5.3 * 10-21
=> 1.88 * 1033 photon.
 
3 months ago
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