Advertisements
Advertisements
Question
AB is the object, A1B1 is its image. MM' is the position of the mirror. Complete the ray diagram and find the position of the center of curvature and focus of the mirror. Also, measure the focal length.
Advertisements
Solution
A light ray coming from a point on object AB is reflected from the surface of the mirror. When this ray is produced backwards, it passes through the principal focus and the ray which traces its incident path after reflection, when produced backwards, passes through the centre of curvature. These two reflected rays coincide at a point where the image is formed. The image, A'B' is virtual, erect, and diminished in size The focal length was found to be 24 mm.
APPEARS IN
RELATED QUESTIONS
Explain the following term related to spherical lenses:- optical centre
An image that cannot be obtained on a screen is called ______.
Match the items given in Column I with one or more items of Column II.
| Column I | Column II | ||
| (a) | A plane mirror | (i) | Used as a magnifying glass. |
| (b) | A convex mirror | (ii) | Can form image of objects spread over a large area. |
| (c) | A convex lens | (iii) | Used by dentists to see enlarged image of teeth. |
| (d) | A concave mirror | (iv) | The image is always inverted and magnified. |
| (e) | A concave lens | (v) | The image is erect and of the same size as the object. |
| (vi) | The image is erect and smaller in size than the object. |
Name the two kinds of spherical mirrors and distinguish between them.
In each case (a) and (b), draw reflected rays for the given incident rays and mark focus by the symbol F.
Does the mirror mentioned in part (b) form real image for all locations of the object?
Does the mirror name by your form a real image for all locations? Give a reason for your answer.
Is real image always inverted?
Which of the following has curved reflecting surface?
Name the type of mirror used in the following situation:
Solar furnace
Support your answer with reason.
