Minimum deviation position

A triangular prism of apex angle 45, and index 1.6 is set on the minimum deviation position, so the angle of incidence equals...

• 37.8

• 17. 3

• 30.5

A light ray falls on one of the faces of an equilateral prism at angle 40,and it refracts parallel to the base of the prism, so it emerges at angle of.....

• 40

• 60

• 20

• 30

The ratio between the angle of refraction and the angle of incidence on the second surface of a prism whom it's refracted ray is parallel to the base of the prism is........

• Equals to one

• Equal one

• more than one

A light falls on one of the faces of a triangular prism of refractive index 1.5

At angle 45 and emerges at angle 45, then the apex angle of the prism is.....

• 56.25

• 60

• 72

A triangular prism of apex angle 45 and index 1.66 is submerged in a liquid of index 1.33. If the prism is in the minimum deviation position, the angle of deviation of light in the prism in this case......

• 12.06

• 9.29

• 16.19

Light falls on one of the faces of a triangular prism of apex angle 40, with an angle of incidence 60 to emerges normally from the other side, then the refractive index is....

• 1.35

• 1.414

• 1.12

• 1.5