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प्रश्न
The shiny outer surface of a hollow sphere of aluminium of radius 50 cm is to be used as a mirror:
Which type of spherical mirror will it provide?
उत्तर
Since the outer surface is shiny, it will form a convex mirror.
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संबंधित प्रश्न
A 4 cm tall object is placed on the principal axis of a convex lens. The distance of the object from the optical centre of the lens is 12 cm and its sharp image is formed at a distance of 24 cm from it on a screen on the other side of the lens. If the object is now moved a little away from the lens, in which way (towards the lens or away from the lens) will he have to move the screen to get a sharp image of the object on it again? How will the magnification of the image be affected?
What is a virtual image?
Name the two types of spherical mirrors. What type of mirror is represented by the:
front side of a shining steel spoon?
Draw a ray diagram to show the formation of image by a concave mirror for the object beyond its centre of curvature. State three characteristics of the image.
Discuss the position and nature of image formed by a concave mirror when an object is moved from infinity towards the pole of mirror.
How will you distinguish between a plane mirror, a concave mirror and a convex mirror, without touching them?
An object 5 cm high forms a virtual image of 1.25 cm high, when placed in front of a convex mirror at a distance of 24 cm. Calculate:
- the position of the image
- the focal length of the convex mirror.
Define the term Pole.
