The dispersive power of crown and flint glasses are 0.03 and 0.05 respectively . If difference in refractive indices of blue and red colours is 0.014 for crown glass and 0.023 for flint glass . Then the angle of two prisms for a deviation of $10^{\circ}$ (with out dispersion )

Question

$(a)\;26.8^{\circ}\; and\; 54.9^{\circ}\\ (b)\;51^{\circ}\; and\; 26^{\circ} \\ (c)\;53.6 ^{\circ}\; and\; 32.6^{\circ} \\ (d)\;None$