Name a piece of apparatus other than plane mirror, which can be used to turn a ray of light through 90 degree ?

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Solution

Prisms can be used to do it.

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Similar questions

Q. Name a piece of apparatus other than plane mirror, which can be used to turn a ray of light through 90 degree ? Do I need to specify the type of prism used(the isosceles prism) ?

What device other than a plane mirror can be used to turn a ray of light through $180^{\circ}$ ? Draw a diagram in support of your answer. Name an instrument in which this device is used.

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Q. A ray of light strikes a plane mirror at an angle of incidence

45^{0}

as shown in figure. After reflection, the ray passes through a prism of refractive index 1.5 whose apex angle is

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Q. If a mirror gets turned through an angle the reflected ray also gets turned through certain angles suppose the plane mirror is turned through 30° prove by using laws of reflection that the reflected ray turns by 60°.

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