A ray of light passes through an equilateral glass prism in such a manner that the angle of incidence is equal to the angle of emergence and each of these angles is equal to $\frac{3}{4}$ of the angle of the prism. The angle of deviation is

Q. A ray of light passes through an equilateral glass prism in such a manner that the angle of incidence is equal to the angle of emergence and each of these angles is equal to $\frac{3}{4}$ of the angle of the prism. The angle of deviation is _________. [2 Marks]

Q. A ray of light passes through an equilateral prism (refractive index 1.5) such that angle of incidence is equal to angle of emergence and the latter is equal to ${3/4}^{th}$ of the angle of prism. The angle of deviation is

Q. A ray of light passes through an equilateral prism $(\mu =1.5)$ such that the angle of incidence is equal to the angle of emergence & the either is equal to $\frac{3}{4}th$ of the angle of prism. Calculate angle of deviation.