Physics

posted by .

A prism, made of glass of refractive index 1.50, has two plane faces at an angle 33 to each other. A ray of light enters the glass from one side perpendicular to that face and emerges through the other.

Part A:
As the ray enters the glass, what is its angle of incidence ?
Give your answer in degrees.

PartB:
Just before the ray emerges from the glass, what is its angle of incidence ?
Give your answer in degrees.

Part C:
If the prism is in air calculate the deviation of the ray.
Give your answer in degrees. Remember, you're being asked for the deviation angle, not the angle of refraction. The deviation angle is the difference between the incidence and refraction angles at the glass/air interface.

  • Physics -

    Learn Snell's law and make a serious attempt on your own. We are not going to do all of these for you.

  • Physics -

    A: an angle of incidence is zero because this is the angle between the normal to the surface and the incident ray.
    B: examine the triangle formed by: the point where the ray enters the prism, the vertex of triangle (33o) and the point where the ray emerges from the prism. β = 180o - 90o - 33o=57o. This is the angle between the ray propagating in the prism and the second plane face of prism, therefore, the second angle of incidence is 33o.
    C: sin r/sin i1=1.5, sin r = 1.5•sin i1=0.817,
    r = 54.8o.
    deviation is 57o-54.8o=2.2o

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Physic please help!

    Two slabs with parallel faces are made from different types of glass. A ray of light travels through air and enters each slab at the same angle of incidence. Which slab has the greater index of refraction and why?
  2. college physics

    A ray of light traveling in air strikes the midpoint of one face of an equiangular glass prism (n = 1.50) at an angle of exactly 30 degrees. a)Trace the path of the light ray through the glass, and find the angle of incidence of the …
  3. Physics

    A large fish tank is filled with water (of refractive index 1.33). One side of the tank is made of a parallel-sided piece of glass. A ray of light strikes the glass from the outside at an angle of incidence of 48. Estimate the angle …
  4. Physics

    An aquarium filled with water has flat glass sides whose index of refraction is 1.48. A beam of light from outside the aquarium strikes the glass at a 43.5º angle to the perpendicular . The angle this light ray enters the glass is …
  5. Physics

    An aquarium filled with water has flat glass sides whose index of refraction is 1.48. A beam of light from outside the aquarium strikes the glass at a 43.5º angle to the perpendicular . The angle this light ray enters the glass is …
  6. physics

    A light of ray is incident at an angle of 58degrees on the plane surface of a block of glass of refractive index 1.60. Some light is reflected on the other side of the normal att he same angle as the angle of incidence. Find: a.the …
  7. physics/light reflection

    A light of ray is incident at an angle of 58degrees on the plane surface of a block of glass of refractive index 1.60. Some light is reflected on the other side of the normal at the same angle as the angle of incidence. Find: a.the …
  8. physics

    A light of ray is incident at an angle of 58degrees on the plane surface of a block of glass of refractive index 1.60. Some light is reflected on the other side of the normal at the same angle as the angle of incidence. Find: a.the …
  9. physics

    A ray of light is incident at an angle of 20degrees to the normal on one face of an equilateral prismm made in glass of refractive index 1.523. Trace the ray of light through the prism and find the total deviation produced.
  10. physics

    A ray of light is incident at an angle of 20degrees to the normal on one face of an equilateral prism made in glass of refractive index 1.523. Find the total deviation produced.

More Similar Questions