10% of the energy supplied to a bulb is radiated as visible light. How many photons are emitted per second by a 50 W bulb? Take the wavelength of visible light as 660 nm. A. 2.66 x 1019 B. 1.66 x 1020 C. 1.66 x 1019 D. 2.66 x 1020
10% of the energy supplied to a bulb is radiated as visible light. How many photons are emitted per second by a 50 W bulb? Take the wavelength of visible light as 660 nm. A. 2.66 x 1019 B. 1.66 x 1020 C. 1.66 x 1019 D. 2.66 x 1020
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10% of the energy supplied to a bulb is radiated as visible light. How many photons are emitted per second by a 50 W bulb? Take the wavelength of visible light as 660 nm.
A. 2.66 x 1019
B. 1.66 x 1020
C. 1.66 x 1019
D. 2.66 x 1020
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