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प्रश्न
Define the following term in relation to concave mirror.
Center of curvature
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उत्तर
The centre of a hollow sphere of which the mirror forms a part is called the centre of curvature.
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संबंधित प्रश्न
Define (a) centre of curvature (b) radius of curvature (c) pole (d) principal axis, and (e) aperture, of a spherical mirror with the help of a labelled diagram
A lens forms a real image 3 cm high of an object 1 cm high. If the separation of object and image is 15 cm, find the focal length of the lens.
Draw suitable diagrams to illustrate the action of (i) concave mirror and (ii) convex mirror on a beam of light incident parallel to the principal axis.
Answer the following question.
Write the modification in the curvature of the eye lens which enables us to see the nearby objects clearly?
Select the correct option:
Looking into a mirror one finds her image diminished, the mirror is:
Define the following term in relation to concave mirror.
Principal focus
A concave mirror can be used to produce a parallel beam of light. Draw a ray to illustrate this.
Explain why a ray of light passing through the center of curvature of a concave mirror, gets reflected along with the same pattern.
In normal adjustment, for a refracting telescope, the distance between objective and eye piece is 30 cm. The focal length of the objective, when the angular magnification of the telescope is 2, will be ______.
