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If f(0)=5c, lambda 6000Å, a=1cm for a mi...

If `f_(0)=5c, lambda 6000Å, a=1cm` for a microscope, then wht will be its resolving power

A

`11.9xx10^(5)//m`

B

`10.9xx10^(5)//m`

C

`10.9xx10^(4)//m`

D

`10.9xx10^(3)//m`

Text Solution

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The correct Answer is:
B
`R.P=(2musin theta)/(1.22lambda)`

`tan theta~=sintheta=(a)/(f)=(1)/(5)=0.2" "rArr" R.D"=(2xx1xx0.2)/(1.22xx6xx10^(-7))=(4xx10^(6))/(3.66)`
`RP=10.9xx10^(5)//m`
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