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प्रश्न
An image which can be obtained on a screen is called a ______ image.
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उत्तर
An image which can be obtained on a screen is called a real image.
Explanation:
A real image is formed by converging light rays and can be projected onto a screen, making it visible at the point where the rays meet.
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संबंधित प्रश्न
Explain the following term related to spherical lenses:- principal focus
State the kind of mirror used
(a) by a dentist, and
(b) as a street light reflector.
AB and CD, two spherical mirrors, from parts of a hollow spherical ball with its centre at O as shown in the diagram. If arc AB = `1/2` arc CD, what is the ratio of their focal lengths? State which of the two mirrors will always form virtual image of an object placed in front of it and why.
Figure shows a concave mirror with its pole at P, focus F and centre of curvature C. Draw ray diagram to show the formation of image of an object OA.
Discuss the position and nature of image formed by a concave mirror when an object is moved from infinity towards the pole of mirror.
A real and enlarged image can be obtained by using a
At what distance from a concave mirror of focal length 25 cm should an object be placed so that the size of image is equal to the size of the object.
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:
Concave mirror
