Which of the following is Cauchy’s formula?

μ=A+\(\frac {B}{\lambda^2} + \frac {C}{\lambda^4}\)

μ=A+\(\frac {B}{\lambda}+\frac {C}{\lambda^2}\)

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1.	A thin prism with an angle of 3o and made from glass of refractive index 1.15 is combined with another prism made from glass and has a refractive index of 1.45. If the dispersion were to occur without deviation then what should be the angle of the second prism?
A.	3o
B.	0o
C.	1o
D.	2o
Answer» D. 2o

Discussion

2.	Calculate the dispersive power of crown glass where μV=1.456 and μR=1.414.
A.	0.0096
B.	0.45
C.	0.96
D.	0.096
Answer» E.

Discussion

3.	Which of the following is Cauchy’s formula?
A.	μ=A+Bλ2+Cλ4
B.	μ=A+\(\frac {B}{\lambda^2} + \frac {C}{\lambda^4}\)
C.	μ=A+B+CBλ
D.	μ=A+\(\frac {B}{\lambda}+\frac {C}{\lambda^2}\)
Answer» C. μ=A+B+CBλ

Discussion

Explore topic-wise MCQs in Physics Questions and Answers.

A thin prism with an angle of 3o and made from glass of refractive index 1.15 is combined with another prism made from glass and has a refractive index of 1.45. If the dispersion were to occur without deviation then what should be the angle of the second prism?

Calculate the dispersive power of crown glass where μV=1.456 and μR=1.414.

Which of the following is Cauchy’s formula?