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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
What type of image is formed:
in a plane mirror?
Name the spherical mirror which can produce a real and diminished image of an object.
How is the focal length of a spherical mirror related to its radius
A student obtained a sharp image of a burning candle, placed at the farther end of a laboratory table, on a screen using a concave mirror. For getting better value of focal length of the mirror, the subject teacher suggested him for focusing a well illuminated distant object. What should the student do?
(A) He should move the mirror away from the screen.
(B) He should move the mirror slightly towards the screen.
(C) He should move the mirror as well as the screen towards the newly selected object.
(D) He should move only the screen towards the newly selected object.
Does the mirror mentioned in part (b) form real image for all locations of the object?
Name the kind of mirror used to obtain:
A virtual and diminished image
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 Principle focus.
The minimum length of the mirror required to see the full image of the person is half ‘ of his height.
In the figure shown, the image of a real object is formed at the point I. AB is the principal axis of the mirror. The mirror must be:
