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Limit of resolution of a microscope is 1.22(lambda) /2usin(beta)..... .What is beta here

Limit of resolution of a microscope is 1.22(lambda) /2usin(beta)..... .What is beta here

Grade:12th pass

1 Answers

Vikas TU
14149 Points
5 years ago
Limit of resolution of a microscope is given as: 1.22(lamda)/d
On comparing,
d = 2usin(beta)
and we know that,
2*d*sin(ththa) = n*lamda
d = lamda/2sinthetha for n=1
or
2usin(beta) = lamda/2sinthetha
sin(beta) = lamda/(4u*sinthetha)
beta = arcsin( lamda/(4u*sinthetha))

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