A crown glass prism of refracting angle $8^{0}$ is combined with a flint glass prism to obtain deviation without dispersion. If the refractive indices for red and violet rays for the crown glass are 1.514 and 1.524 and for the flint glass are 1.645 and 1.665 respectively, the net deviation is

Question

A crown glass prism of refracting angle

8^{0}

is combined with a flint glass prism to obtain deviation without dispersion. If the refractive indices for red and violet rays for the crown glass are 1.514 and 1.524 and for the flint glass are 1.645 and 1.665 respectively, the net deviation is

Toppr Admin · Accepted Answer

-x3BC-v1-x2212-x3BC-r1-a1-x3BC-v2-x2212-x3BC-r2-a2

A crown glass prism of refracting angle 6∘ is to be used for deviation without dispersion with a flint glass of angle of prism a.Given: for crown glass μr=1.513 and μv=1.523, for flint glass μr=1.645 and μv=1.665. Find a.3∘4∘4.5∘5∘

(μv1−μr1)a1=(μv2−μr2)a2

$(μ_{v_{1}} - μ_{r_{1}}) a_{1} = (μ_{v_{2}} - μ_{r_{2}}) a_{2}$