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प्रश्न
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उत्तर
Angle of reflection to the normal = angle of incidence to the normal = 20°
So the angle between incident ray and reflected ray = Angle of incidence + Angle of reflection = 20 + 20 = 40°
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संबंधित प्रश्न
How will you explain the statement 'we cannot see the objects in a dark room'?
Explain the following term:
Angle of reflection. Draw diagram/diagrams to show them.
Write down four characteristics of image formed in a plane mirror.
Draw a neat two ray diagram to illustrate how a concave mirror is used as a shaving mirror.
State whether the following statement is true or false. If false, correct it.
The angle of incidence is the angle made by the incident ray with the plane mirror.
Dull materials reflect light.
______ through which light can pass partially.
______ through which light can pass completely.
A burning candle in water
Take a shoe box, open on one side. Place a small lighted candle in it. Place a clear glass sheet (roughly 25 cm × 25 cm) in front of this candle figure. Try to locate the image of the candle behind the glass sheet. Place a glass of water at its position. Ask your friends to look at the image of the candle through the sheet of glass. Ensure that candle is not visible to your friends. Your friends will be surprised to see the candle burning in water. Try to explain the reason.
