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  • The number of photons emitted in 10 hours by a 60 W sodium lamp ( of photon =6000 <img alt="\AA" src="http://entr

The number of photons emitted in 10 hours by a 60 W sodium lamp (\lambda of photon =6000 \AA) is x \times 10^{24}. Find the value of x

Option: 1

6.5
 


Option: 2

6


Option: 3

8.4

 


Option: 4

3.4


Answers (1)

best_answer

 

The energy (E) of a quantum of radiation -

E=hv

Where h is plank’s constant and \nu is frequency

-

Planck’s Quantum Theory -

Atom and molecules could emit (or absorb) energy only in discrete quantities known as quanta and not in a continuous manner.

-

Let n be the number of Photons emitted

\Rightarrow 1.6\times 10^{-19}\times n=60\times 10\times 60\times 60

\Rightarrow n=6.5\times 10^{24}

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Nehul

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