In the diagram, a ray of light is incident on a plane mirror at an angle of 300. Calculate the new angle of incidence if the mirror is rotated through 100.

Foundation

Physics Foundation

Reflection from spherical mirror

Question

In the diagram, a ray of light is incident on a plane mirror at an angle of 30⁰. Calculate the new angle of incidence if the mirror is rotated through 10⁰.

60⁰

70⁰

20⁰

10⁰

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When the mirror rotates anticlockwise, the normal rotates by 10 degree in the same direction,

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