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If n(r ) and n(b) are the number of phot...

If `n_(r )` and `n_(b)` are the number of photons of red and blue light respectively with same energy, then

A

`n_(r ) gt n_(b)`

B

`n_(r ) lt n_(b)`

C

`n_(r ) = n_(b)`

D

no relation between `n_(r )` and `n_(b)`

Text Solution

Verified by Experts

The correct Answer is:
A
`("VIBGYOR")/(lambda"(increases)")E=n.(hc)/(lambda)`
From equation, `" "E_(r )=E_(b)" (Given)"`
`" or "n_(r ).(hc)/(lambda_(r ))=n_(b).(hc)/(lambda_(b))" or "(n_(r ))/(lambda_(b))=(lambda_(r))/(lambda_(b))because(lambda_(r ))/(lambda_(b))gt1`
Hence, `(n_(r ))/(n_(b))gt1" or "n_(r )gt n_(b)`
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