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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
Explain the following term related to spherical lenses:- centres of curvature
We can obtain an enlarged and erect image by a convex mirror.
What kind of mirror is required for obtaining a virtual image of the same size as the object?
How is a spherical mirror used to converge a beam of light at a point? Name the type of mirror used.
State the direction of incident ray which after reflection from a spherical mirror gets reflected along its own path. Give a reason.
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.
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.
Name the two kinds of spherical mirrors and distinguish between them.
Define the terms pole, principal axis and centre of curvature with reference to a spherical mirror.
Discuss the position and nature of image formed by a concave mirror when an object is moved from infinity towards the pole of mirror.
The erect image formed by a concave mirror is of size double the size of object. How are u and v related?
The sun is seen before the sunrise and after the sunset.
Answer the following question.
Write the modification in the curvature of the eye lens which enables us to see the nearby objects clearly?
An object forms a virtual image which is 1/8th of the size of the object. If the object is placed at a distance of 40 cm from the convex mirror, calculate:
- the position of the image
- the focal length of the convex mirror.
Define the term principal focus in case of convex mirror. Draw a convex mirror and show its principal focus and focal length clearly.
In the following figure shows a concave mirror with its pole (P), focus (F) and centre of curvature (C). Draw a ray diagram to show the formation of the image of an object AB by the concave mirror.
An object is placed at a distance of 0.25 m
in front of a plane mirror. The distance between the object and image will be ______.
