TS EAMCET 14-Sep-2020 Shift 1 Solved Paper

For dispersion without deviation
Net deviation =0
where, δ= deviation by first prism
δ′= deviation by second prism
A= angle of first prism =6∘
A′= angle of second prism =?
µ = refractive index of first prism=1.5
µ' = refractive index of second prism =1.75
⇒A′(µ′−1)=A(µ−1)