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प्रश्न
What happens when a ray of light falls normally (or perpendiculary) on the surface of a plane mirror?
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उत्तर
When a ray of light falls normally (or perpendicularly) on the surface of a plane mirror, it gets reflected along the same path because the angles of incidence and reflection are both equal to zero.
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संबंधित प्रश्न
One half of a convex lens of focal length 10 cm is covered with a black paper. Can such a lens produce an image of a complete object placed at a distance of 30 cm from the lens? Draw a ray diagram to justify your answer. A 4 cm tall object is placed perpendicular to its principal axis of a convex lens of focal length 20 cm. The distance of the object from the lens is 15 cm. Find the nature, position and the size of the image.
An image formed by a ______ mirror is always of the same size as that of the object.
We can obtain an enlarged and erect image by a convex mirror.
A ray of light is incident normally on a plane mirror. What will be the
angle of reflection?
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.
Why is a hole burnt in the carbon paper?
Explain the following terms :
Pole, Centre of curvature, Radius of curvature, Principal axis. Show them on separate diagrams for each of the concave and convex mirrors.
Which are the two convenient rays that are chosen to construct the image by a spherical mirror for a given object? Explain with the help of suitable ray diagrams.
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
Explain the following term:
Incident ray
Draw diagram/diagrams to show them.
Complete the following diagrams in Figure by drawing the reflected rays for the incident rays 1 and 2.
Discuss the position and nature of image formed by a convex mirror when an object is moved from infinity towards the pole of mirror.
Why does a driver use a convex mirror instead of a plane mirror as a rear view mirror?
Illustrate your answer with the help of a ray diagram.
Upto what maximum distance from the pole the image in a convex mirror can be obtained? what will be the location of object then ?
Define the following term in relation to concave mirror.
Aperture
Define the term Aperture.
Which of the following has curved reflecting surface?
Geometric centre of the spherical mirror is ______.
