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प्रश्न
Radius of curvature of a spherical mirror is ............. its focal length.
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उत्तर
Radius of curvature of a spherical mirror is two times its focal length
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संबंधित प्रश्न
With the help of an appropriate ray diagram, state the sign conventions for reflection by a spherical mirror.
"A concave mirror of focal length 15 cm can form a magnified, erect as well as inverted image of an object placed in front of it." Justify this statement stating the position of the object with respect to the pole of the mirror in both the cases for obtaining the images.
Draw the following diagram in which a ray of light is incident on a concave/convex mirror on your answer sheet. Show the path of this ray, after reflection, in each case.
A student has obtained the image of a distant object with a concave mirror to determine its focal length. If he has selected a well-illuminated red building as object, which of the following correctly describes the features of the image formed?
(A) Virtual, inverted and diminished image in red shade
(B) Real, erect and diminished image in pink shade
(C) Real, inverted and diminished image in red shade
(D) Virtual, erect and enlarged image in red shade
Large ______ mirrors are used to concentrate sunlight to produce heat in solar furnaces.
Which of the following can make a parallel beam of light when light from a point source is incident on it?
An object at a distance of 30 cm from a
concave mirror gets its image at the same point. The focal length of the mirror is ______.
What is a concave and convex mirror?
Define principal focus of the concave mirror.
Between which two points of a concave mirror should an object be placed to obtain a magnification of -2?
