A 50 watt bulb emits monochromatic red light of wavelength of \( 795 \mathrm{~nm} \). The number of photons emitted per second by the bulb is \( x \times 10^{20} \). The value of \( x \) is ____(Nearest integer)

[Given: \( h=6.63 \times 10^{-34} \mathrm{Js} \) and \( c=3.0 \times 10^{8} \mathrm{~ms}^{-1} \) ]

[JEE Main 2021, 1 Sep (Shift 2)]

Question

A 50 watt bulb emits monochromatic red light of wavelength of \( 795 \mathrm{~nm} \). The number of photons emitted per second by the bulb is \( x \times 10^{20} \). The value of \( x \) is ____(Nearest integer)

[Given: \( h=6.63 \times 10^{-34} \mathrm{Js} \) and \( c=3.0 \times 10^{8} \mathrm{~ms}^{-1} \) ]

[JEE Main 2021, 1 Sep (Shift 2)]

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A 50 watt bulb emits monochromatic red light of wavelength of \( 795 \mathrm{~nm} \). The number of photons emitted per …

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