Question

) In a direct vision spectroscope, there are three identical crown glass prisms and two identical flints glass prism. If mean reflective indices of crown glass and flint glass be respectively 1.56 and 1.63 and angle of each crown glass prism be 6, then angle of each flint glass prism should be
A) 7{}^\circ B) 8{}^\circ C) 9{}^\circ D) 10{}^\circ

Answer 1

A is the correct answer of this question