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प्रश्न
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उत्तर
Magnification = height of image / height of object.
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संबंधित प्रश्न
Explain the following term related to spherical lenses:- optical centre
AB and CD, two spherical mirrors, from parts of a hollow spherical ball with its centre at O as shown in the diagram. If arc AB = `1/2` arc CD, what is the ratio of their focal lengths? State which of the two mirrors will always form virtual image of an object placed in front of it and why.
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.
A concave mirror forms a virtual image of size twice that of the object placed at a distance 5 cm from it. Find:
- the focal length of the mirror
- position of image
Select the correct option:
Looking into a mirror one finds her image diminished, the mirror is:
Select the correct option:
Which mirror is used in periscope?
Complete the following diagrams shown in the below figure by drawing the reflected ray for each incident ray.
For a spherical mirror, ______ is true.
A spherical mirror whose reflecting surface is curved outwards is called ______ mirror.
In the figure shown, the image of a real object is formed at the point I. AB is the principal axis of the mirror. The mirror must be:
