Advertisements
Advertisements
प्रश्न
State two uses of a plane mirror.
Advertisements
उत्तर
It is used as :
(i) Looking glass
(ii) In periscopes.
APPEARS IN
संबंधित प्रश्न
Fill in the blank
A plane mirror _________ reflects 100 percent light falling on it.
Explain the following term:
Reflected ray. Draw diagram/diagrams to show them.
State three ways in which the image formed in a plane mirror differs from the image formed in a pin hole camera.
Identify the following kind of beam of light.
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?
Complete the path of incident ray in the following case.
Which of the following ray diagrams is correct for the ray of light incident on a lens shown in figure?
 |
 |
| A | B |
 |
 |
| C | D |
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.
