A thin prism `P_(1)` with angle `4degree` and made from glass of refractive index 1.54 is combined with another thin prism `P_(2)` made from glass of refractive index 1.72 to produce dispersion without deviation. The angle of the prism `P_(2)` is

A thin prism P with angle 4^(@) and made from glass of refractive index 1.54 is combined with another thin prism P made from glass of refractive index 1.72 to produce dispersion without deviation The angle of prism P is

A thin prism P_(1) with angle 6^(@) and made from glass of refractive index 1.54 is combined with another thin prism P_(2) of refractive index 1.72 to produce dispersion without deviation. The angle of prism P_(2) will be

A thin prism P_1 of angle 4^0 and refractive index 1.54 is combined with another thin prism P_2 of refractive index 1.72 to produce dispersion without deviation.The angle of prism P_2 is

A thin prism of angle 6^(@) made up of glass of refractive index 1.5 is combined with anorher prism made up of glass of refractive index 1.75 to produce dispersion without deviation. The angle of second prism is

A thin prism P of refracting angle 3^(@) and refractive index . 1.5 is combined with another thin prism Q of refractive index 1.6 to produce dispersion without deviation. Then the angle of prism Q is

A thin glass prism of angle 6^(@) of refractive index 1.5 is combined with another glass prism of refractive index 1.6 to produce dispersion without deviation. What is the angle of the second prism ?

A thin prism of angle 15^@ made of glass of refractive index mu_1=1.5 is combined with another prism of glass of refractive index mu_2=1.75 . The combination of the prisms produces dispersion without deviation. The angle of the second prism should be

A thin prism of angle 15^(@) made of glass of refractive index mu_(1)=1.5 is combined with another prism of glass of refractive index mu_(2)=1.75 . The combination of the prism produces dispersion without deviation. The angle of the second prism should be