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प्रश्न
What do you understand by the term real image?
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उत्तर
Real image: When rays of light after reflection or refraction actually meet at some other point” the image is real.
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संबंधित प्रश्न
Define the following term in the context of spherical mirrors:- Centre of curvature
A diverging lens is used in:
(a) a magnifying glass
(b) a car to see objects on rear side
(c) spectacles for the correction of short sight
(d) a simple camera
A 50 cm tall object is at a very large distance from a diverging lens. A virtual, erect and diminished image of the object is formed at a distance of 20 cm in front of the lens. How much is the focal length of the lens?
How is a spherical mirror used to converge a beam of light at a point? Name the type of mirror used.
State the number of images of an object placed between two mirrors, formed in each case when mirrors are inclined to each other at (a) 90°, and (b) 60°.
State two uses of a concave mirror.
For an incident ray directed towards centre of curvature of a spherical mirror the reflected ray:
A real and enlarged image can be obtained by using a
Complete the following diagrams shown in the following figures by drawing the reflected rays.
How tall does a mirror have to be to fit an entire person’s body?
