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प्रश्न
Define Regular reflection.
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उत्तर
The phenomenon due to which a parallel beam of light traveling through a certain medium, on striking some polished surface, bounces off from it, as a parallel beam, in some other direction, is called regular reflection.
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संबंधित प्रश्न
Why are infinite images not seen when two plane mirrors are facing each other?
Draw a neat two ray diagram to illustrate how a concave mirror is used as a shaving mirror.
The angle between an incident ray and the mirror is 350.
(i) What is the angle of incidence?
(ii) What is the angle of reflection?
(iii) What is the total angle turned by the ray of light?
(iv) What is the angle between the incident and the reflected rays?
A boy is standing in front of a plane mirror at a distance of 3 m from it.
(i) What is the distance between the boy and his image?
(ii) If the boy moves 1 m backward, find the distance between the image and the boy.
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.
The word PLATE written on a paper is held in front of a plane mirror. Write down the letters as seen in the following case.
The paper is held parallel to the mirror.
Which position of the object will produce a magnified virtual image, if a concave mirror of focal length 15 cm is being used?
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.
