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An electric bulb of 100 W converts 3% of...

An electric bulb of 100 W converts 3% of electrical energy into light energy.If the wavelength of light emitted is 6625 Å,the number of photons emitted in 1 s is………..
`(h=6.625xx10^(-34))JS`

A

`10^(17)`

B

`10^(19)`

C

`10^(21)`

D

`10^(15)`

Text Solution

Verified by Experts

The correct Answer is:
B
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KUMAR PRAKASHAN-DUAL NATURE OF RADIATION AND MATTER-Section-D (MCQ based on Textual Illustrations and Exercise)
  1. An electric bulb of 100 W converts 3% of electrical energy into light ...

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