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प्रश्न
A ray of light is incident on a plane mirror at an angle of 30°. What is the angle of reflection
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उत्तर
The angle of reflection is 30⁰ as the angle of incidence is equal to the angle of reflection, in accordance with the first law of reflection.
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संबंधित प्रश्न
Define the following term in the context of spherical mirrors:- Pole
Define the following term in the context of spherical mirrors:- Centre of curvature
A concave mirror always forms a real image.
Define the Focal length of a spherical mirror
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
Complete the following diagrams in Figure by drawing the reflected rays for the incident rays 1 and 2.
Upto what maximum distance from the pole the image in a convex mirror can be obtained? what will be the location of object then ?
For an incident ray directed towards centre of curvature of a spherical mirror the reflected ray:
Draw a ray diagram in each of the following cases to show the formation of image, when the object is placed :
(i) between the optical centre and principal focus of a convex lens.
(ii) anywhere in front of a concave lens.
(iii) at 2F of a convex lens.
State the signs and values of magnifications in the above-mentioned cases (i) and (ii).
Answer the following question.
Write the modification in the curvature of the eye lens which enables us to see the nearby objects clearly?
Define the following term in relation to concave mirror.
Principal focus
Define the term Pole.
Define focal length.
A ray of light is incident towards a plane mirror at an angle of 30° with the mirror surface. What will be the angle of reflection?
