History, asked by shashi395, 1 year ago

Hola mate........... Try this......

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Answered by tina9961

0

Answer:

Heyyaa mate.. ☺☺

See attachment

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Answered by ravi9848267328

0

Answer:

Explanation:

ew=hc/lamda

6.62607015×10−34=h

c=3*10^8

lamda=300m

ew=6.626*10^-28

n of photons=e/ew=10*1000/6.626*10^-28=1.5*10^31

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