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प्रश्न
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उत्तर
A concave mirror forms an enlarged virtual image when the object is kept between focus, F and pole, P
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संबंधित प्रश्न
The letter F is placed in front of a plane mirror:
What is the name of the phenomenon involved?
The shiny outer surface of a hollow sphere of aluminium of radius 50 cm is to be used as a mirror:
What will be the focal length of this mirror?
Name the spherical mirror which (i) diverges (ii) converges the beam of light incident on it. Justify your answer by drawing a ray diagram in each case.
Name the mirror which always produces an erect and virtual image. How is the size of image related to the size of object?
How is the focal length of a spherical mirror related to its radius of curvature?
Draw a ray diagram to show the formation of the image, when the object is placed between optical centre and principal focus of a convex lens.
State the signs and values of magnifications in the above mentioned case.
An object 5 cm high forms a virtual image of 1.25 cm high, when placed in front of a convex mirror at a distance of 24 cm. Calculate:
- the position of the image
- the focal length of the convex mirror.
