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प्रश्न
State four uses of a plane mirror.
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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.
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संबंधित प्रश्न
Write true or false of the following statement.
The image formed by a plane mirror can be obtained on a screen.
The diagram in Figure shows a point object P in front of a plane mirror MM1.
(a) Complete the diagram by taking two rays from the point P to show the formation of its image.
(b) In the diagram, mark the position of eye to see the image.
(c) Is the image formed real or virtual? Explain why?
State three ways in which the image formed in a plane mirror differs from the image formed in a pin hole camera.
How many images will be formed when an object is placed between two parallel plane mirrors with their reflecting surfaces facing each other? Why do more distant images appear fainter?
State whether the following statement is true or false. If false, correct it.
If a ray of light incident on a plane mirror is such that it makes an angle of 30o with the mirror, then the angle of reflection is 60o.
State whether the following statement is true or false. If false, correct it.
If the incident ray makes an angle of Xo with the normal, then the reflected ray is 2Xo.
When a ray of light strikes a plane mirror at an angle of 150 with the mirror, what will be the angle through which the ray will deviate? Illustrate with a ray diagram in the following figure.
Reflection occurs , when the light
State the direction of incident ray which after reflection from a spherical mirror retraces its path. Give reason for your answer.
Beams of light are incident through the holes A and B and emerge out of box through the holes C and D respectively as shown in the Figure Which of the following could be inside the box?
