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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
An image that cannot be obtained on a screen is called ______.
What happens when a ray of light falls normally (or perpendiculary) on the surface of a plane mirror?
Name the two types of spherical mirrors. What type of mirror is represented by the:
back side of a shining steel spoon?
State the two kinds of spherical mirror and distinguish them with the aid of proper diagrams.
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.
Explain the meaning of the terms focus and focal length in case of a convex mirror, with the help of suitable ray diagram.
State whether the image in part (a) is real or virtual?
Name the kind of mirror used to obtain:
A virtual and diminished image
Name the kind of mirror used to obtain:
A real and diminished image.
The focal length of a concave mirror is 10 cm. Find its radius of curvature.
Define the following term in relation to concave mirror.
Focal length
Define the term Focus of a concave mirror.
The following Figure shows a concave mirror MM' on which a ray of light incident from a point P gets reflected to meet the principle axis at O.
(a) Find, by construction, the position of the centre of curvature of the concave mirror.
(b) Write down the value for the radius of curvature of the mirror.
(c) Calculate the focal length of the mirror.
(d ) Which relation is used in deducing the focal length from the radius of curvature?
The spherical mirror used in a beauty parlour as make-up mirror is _______.
Explain why a ray of light passing through the center of curvature of a concave mirror, gets reflected along with the same pattern.
