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प्रश्न
Name the type of mirror used in the following situation:
Solar furnace
Support your answer with reason.
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उत्तर
Concave Mirror: This is because for solar furnaces, we use a concave mirror. Light from the sun, on reflection from the mirror, is concentrated at the focus of the mirror, producing heat.
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संबंधित प्रश्न
A student obtains a sharp image of the distant window (W) of the school laboratory on the screen (S) using the given concave mirror (M) to determine its focal length. Which of the following distances should he measure to get the focal length of the mirror?
Explain the following term related to spherical lenses:- aperture
Name the spherical mirror which has:
(a) virtual principal focus.
(b) real principal focus.
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Write true or false
A virtual image formed by a spherical mirror is always erect and situated behind the mirror.
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How is the focal length of a spherical mirror related to its radius
Three mirrors are created from a single sphere. Which of the following - pole, centre of curvature, radius of curvature, principal axis - will be common to them and which will not be common?
Name the two kinds of spherical mirrors and distinguish between them.
Discuss the position and nature of image formed by a convex mirror when an object is moved from infinity towards the pole of mirror.
What is meant by magnification? Write its expression. What is its sign for the (a) real (b) virtual, image?
Define the following term in relation to concave mirror.
Center of curvature
A concave mirror can be used to produce a parallel beam of light. Draw a ray to illustrate this.
The radius of curvature of a spherical mirror is 18 cm. What is the focal length of this mirror?
For a spherical mirror, ______ is true.
The distance from the center of curvature of the mirror to the pole is called the focal length of the mirror.
