Geometrical OpticsMedium
Question
Consider an equilateral prism (refractive index $\sqrt{2}$ ). A ray of light is incident on its one surface at a certain angle $i$. If the emergent ray is found to graze along the other surface then the angle of refraction at the incident surface is close to $\_\_\_\_$ .
Options
A.$15^{\circ}$
B.$20^{\circ}$
C.$40^{\circ}$
D.$30^{\circ}$
Solution
Equilateral prism.
$$A = 60^{\circ} $$
$${\mu{Sinr}_{2} = 1.sine = 1 }{{Sinr}_{2} = \frac{1}{\mu} = \frac{1}{\sqrt{2}} }{r_{2} = 45^{\circ} }{\therefore r_{1} = A - r_{2} = 15^{\circ}}$$
Create a free account to view solution
View Solution FreeMore Geometrical Optics Questions
An object placed at a distance of 9cm from first principal focus of convex lens, produces a real image at a distance of ...A stationary swimmer S inside a liquid of refractive index μ1 is at a distance d from a fixed point P inside the li...A microscope is focussed on a coin lying at the bottom of a beaker. The microscope is now raised up by 1 cm. To what dep...An object 2.4 m in front of a lens forms a sharpimage on a film 12 cm behind the lens. A glassplate 1 cm thick, of refra...On increasing length of the tube of an astronomical telescope its magnifying power:-...