A bulb emits light of wave length 4500Å. The bulb is rated as 150 watt and 8% of the energy is emitted as light. How many photons are emitted by the bulb per second ?

A bulb emits light of wave length 4500Å. The bulb is rated as 150 wat

1.	A bulb emits light of wave length 4500Å. The bulb is rated as 150 watt and 8% of the energy is emitted as light. How many photons are emitted by the bulb per second ?
Answer» ANSWER :`n=27.2 XX 10^(18)`