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In an experiment with a rectangular glas...

In an experiment with a rectangular glass slab, a student observed that a ray of light incident at an angle of `55^(@)` with the normal on one face of the slab, after refraction struck the opposite face of the slab before emerging out into air making an angle of `40^(@)` with the normal.
Draw a labelled diagram to show the path of this ray.

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In an experiment with a rectangular glass slab, a student observed that a ray of light incident at an angle of 60^@ with the normal on one face of the slab, after refraction, strikes the opposite face of the slab before emerging out in air making an angle of 42^@ with the normal. Draw a labelled ray diagram to show the path of this ray. What value would you assign to the angle of refraction and angle of emergence?

In an experiment with a rectangular glass slab, a student observed that a ray of light incident at an angle of 55^(@) with the normal on one face of the slab, after refraction struck the opposite face of the slab before emerging out into air making an angle of 40^(@) with the normal. What value would you assign to the angle of emergence?

Knowledge Check

  • A ray of light strikes a glass slab at an angle of 50^(@) with the normal to the surface of the slab. What is the angle of incidence ?

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    `50^(@)`
    B
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  • A ray of light strikes a glass slab at an angle of 50^(@) with the normal to the surface of the slab. What is the angle of incidence?

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    B
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    C
    `40^(@)`
    D
    `100^(@)`

  • A ray of light is incident on ice slab making an angle of 50^(@) with the normal. The angle of refraction and velocity of light in ice of the refractive index 1.3 are

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    D
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