Advertisements
Advertisements
प्रश्न
Define linear magnification produced by a mirror?
Advertisements
उत्तर
Linear magnification is defined as the ratio of the height of the image to the height of the object. It is taken to be positive for an image to be virtual and erect and negative when the image is real and inverted.
Magnification = height of image / height of object.
APPEARS IN
संबंधित प्रश्न
Explain the following term related to spherical lenses: focal length
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. |
Write the formula for a lens connecting image distance (v), object distance (u) and the focal length (f). How does the lens formula differ from the mirror formula?
Name the mirror which always produces an erect and virtual image. How is the size of image related to the size of object?
Define the following term:
spherical mirror
For a spherical mirror, ______ is true.
