1.

Light passes successively through two polarimeter tubes each of length 0.29m. The first tube contains dextrorotatory solution of concentration 60 kg m^(-3) and specific rotation 0.01 rad m^(2)kg^(-1). The second tube contains laevo-rotatory solution of concentration 30 kg m^(-3) and specific rotation 0.2 rad m^(2) kg^(-1).The net rotation produced is :

Answer»

`15^(@)`
`0^(@)`
`20^(@)`
`10^(@)`

SOLUTION :Using `theta = SIC`, we get , `theta_(1)` and `theta_(2)` both EQUAL to `0.01 xx 0.29 xx 60 therefore Deltatheta = 0`


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