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प्रश्न
Explain the following terms :
Pole, Centre of curvature, Radius of curvature, Principal axis. Show them on separate diagrams for each of the concave and convex mirrors.
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उत्तर
Pole: “The geometric centre of a spherical mirror is called POLE.”
Concave mirror Convex mirror
“The midpoint of aperture AB of the mirror is called pole.” P is pole of mirror.Centre of curvature: “The centre of a hollow sphere of which the mirror forms a part.” It is represented by the symbol ‘ C ‘
Concave mirror Convex mirror
Radius of curvature: “The radius of a hollow sphere of which the mirror is a part”. It is represented by ‘R’
Concave mirror Convex mirror
Principal axis: “Is a straight line joining the pole of the mirror to its centre of curvature and extended further.”
Concave mirror Convex mirror
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संबंधित प्रश्न
Define the following term in the context of spherical mirrors:- Principal axis
A concave lens produces an image 20 cm from the lens of an object placed 30 cm from the lens. The focal length of the lens is:
(a) 50 cm
(b) 40 cm
(c) 60 cm
(d) 30 cm
How is the focal length of a spherical mirror related to its radius
The erect image formed by a concave mirror is of size double the size of object. How are u and v related?
An object of height 2 cm is placed at a distance of 20 cm in front of a concave mirror of a focal length of 12 cm. Find the position, size, and nature of the image.
Does the mirror name by your form a real image for all locations? Give a reason for your answer.
An object 10 cm high is placed at a distance of 20 cm in front of a spherical mirror of focal length 25 cm. By scale drawing find the nature, position, and magnification of the image in the following case:
Convex mirror
Complete the following diagrams shown in the following figures by drawing the reflected rays.
If the real image of a candle flame formed by a lens is three times the size of the flame and the distance between lens and image is 80 cm, at what distance should the candle be placed from the lens?
Name the two types of spherical mirrors.
