JEE PHYSICS MCQ: WAVE OPTICS

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Application +4 | -1

Light passes successively through two polarimeter tubes each of length

0.29\;m

. The first tube contains dextro rotatory solution of concentration

60\;kg{m^{ - 3}}

and specific rotation

0.01\;rad\;{m^2}\;k{g^{ - 1}}

. The second tube contains laevo rotatory solution of concentration

30\;kg/{m^3}

and specific rotation

0.02\;rad\;{m^2}\;k{g^{ - 1}}

. The net rotation produced is

View answer and explanation

Correct option: B

0^\circ

Option B (0°) is correct because the dextro and laevo rotations cancel each other out, resulting in a net rotation of zero.

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