What will be the number of photons emitted per second by a 10 w sodium vapour lamp assuming that 90% of the consumed energy is converted into light ? ( wavelength of sodium light is 590 nm, h =6.63 xx 10^(-34) Js)

What will be the number of photons emitted per second by a 10 w sodium

1.	What will be the number of photons emitted per second by a 10 w sodium vapour lamp assuming that 90% of the consumed energy is converted into light ? ( wavelength of sodium light is 590 nm, h =6.63 xx 10^(-34) Js)
Answer» `0.267 xx 10^(18)` `0.267 xx 10^(19)` `67 xx 10^(19)` `0.267 xx 10^(17)` Answer :C

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What will be the number of photons emitted per second by a 10 w sodium vapour lamp assuming that 90% of the consumed energy is converted into light ? ( wavelength of sodium light is 590 nm, h =6.63 xx 10^(-34) Js)

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