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If the scattering intensity of a liquid ...

If the scattering intensity of a liquid is 8 units at a wavelentth of 500 nm, then the scatering insensity at a wavelength of 400 nm will be approximately

A

13 units

B

16 units

C

20 units

D

24 units

Text Solution

Verified by Experts

According to Rayleigh's scattering law `Iprop (1)/(lamda ^(4))`
`therefore (I_(2))/(I_(1))=((lamda_(1))/(lamda_(2)))^(4) therefore (I_(2))/(8) =((500)/(400))^(4) =(625)/(256)`
`therefore I_(2) =(625)/(256)xx 8 =(625)/(32) div 20` units
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