1.

Number of photon coming out per sec from the bulb of 100 watt.If it is 50% efficient and wavelength is 600nm

Answer»

Answer:

Explanation:

RECALL E=hcλ

E=(6.626×10−34)(3.0×108)560×10−9

E=3.550×10−19J

Each PHOTON carries 3.550×10−19J of energy.

A 100W SOURCE MEANS that it outputs 100J of energy every second.

number of photons emitted = total energy output in one second / energy carried per photon

n=1003.550×10−19=2.8×1020 (2sf)



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