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MediumJEE PYQs
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A monochromatic source of light operating at 15 kW emits 2.5 × 10²² photons/s. The region of an electromagnetic spectrum to which the emitted electromagnetic radiation belongs to __________. (Take h = 6.6 × 10⁻³⁴ Js and c = 3 × 10⁸ m/s).
A
Microwave
B
Infrared
C
Visible
D
Ultraviolet
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