Advertisements
Advertisements
प्रश्न
State four uses of a plane mirror.
Advertisements
उत्तर
Four uses of plane mirror are:
- Plane mirrors are used in the construction of reflecting periscope.
- They are used as looking glass.
- They are used in solar cookers for reflecting the rays of the sun into the cooker.
- They are used for signaling purposes.
APPEARS IN
संबंधित प्रश्न
State the characteristics of the image formed by a plane mirror.
Fill in the blank
The image formed by a plane mirror is at a distance behind the mirror as ________
If the angle between the mirror and the reflected ray is 23∘, what is the angle of incidence of the incidence ray?
A light ray is incident normally on a plane mirror. (a) What is its angle of incidence?
The diagram below in figure shows an object XY in front of a plane mirror MM1 . Draw on the diagram, path of two rays from each point X and Y of the object to show the formation of its image .
Define Regular reflection.
Draw a neat two ray diagram to illustrate how a concave mirror is used as a shaving 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.
Complete the path of incident ray in the following case.
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.
