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A bulb emits light having λ=4950 ∘A. The bulb is rated as 100 watt and 15% of the energy is emitted as light. If the number of photons emitted by the bulb per second are x×1019, then x is (take Planck's constant h = 6.6×10−34 Js |
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Answer» A bulb emits light having λ=4950 ∘A. The bulb is rated as 100 watt and 15% of the energy is emitted as light. If the number of photons emitted by the bulb per second are x×1019, then x is (take Planck's constant h = 6.6×10−34 Js |
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