1.

A 600 W mercury lamp emits monochromatic radiation of wavelength 3.315 x 10-7 m. How many photons are emitted from the lamp per second ? a. 1 x 109b. 1 x 1020 c. 1 x 1021d. 1 x 1023

Answer»

Correct option is c. 1 x 1021



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