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प्रश्न
An object is placed in front of a concave mirror as shown in the following figure. By scale drawing, find the nature of the image. Given f = 10 cm, v = 30 cm.
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उत्तर
Focal length o f concave mirror= 10 cm. Object distance = 30 cm.
The image is real, inverted, and diminished.
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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?
We can obtain an enlarged and erect image by a convex mirror.
What is the relation between the focal length and radius of curvature of a spherical mirror (concave mirror or convex mirror)?
A 2.0 cm tall object is placed 40 cm from a diverging lens of focal length 15 cm. Find the position and size of the image.
An optical device has been given to a student and he determines its focal length by focusing the image of the sun on a screen placed 24 cm from the device on the same side as the sun. Select the correct statement about the device.
(A) Convex mirror of focal length 12 cm
(B) Convex lens of focal length 24 cm
(C) Concave mirror of focal length 24 cm
(D) Convex lens of focal length 12 cm
Name the kind of mirror used to obtain:
A virtual and diminished image
Find the height of the image of a body of height 1.5m in a mirror with a magnification of 1.5.
What is the relationship between the focal length and radius of curvature?
Define the term Centre of curvature.
