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प्रश्न
Complete the following diagrams shown in Fig. by drawing the reflected ray for each of the incident ray A and B.
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उत्तर
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संबंधित प्रश्न
Explain the following term related to spherical lenses:- aperture
What type of image is formed:
on a cinema screen?
When a spherical mirror is held towards the sun and its sharp image is formed on a piece of a carbon paper for some time, a hole is burnt in the carbon paper.
What is the advantage of using a carbon paper rather than a white paper?
What is a spherical mirror?
(a) When a concave mirror is used as a shaving mirror, where is the person's face in relation to the focus of mirror?
(b) State three characteristics of the image seen in part (a).
A real and enlarged image can be obtained by using a
What is the relationship between the focal length and radius of curvature?
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
If the focal length of a spherical mirror is 10 cm, what is the value of its radius of curvature?
Assertion: Incident ray is directed towards the centre of curvature of spherical mirror. After reflection it retraces its path.
Reason: Angle of incidence (i) = Angle of reflection (r) = 0°
