Question

Study the data given below showing the focal length of three concave mirrors A, B and C and the respective distances of objects placed in front of the mirrors : | Case | Mirror | Focal Length (cm) | Object Distance (cm) | |------|--------|-------------------|---------------------| | 1 | A | 20 | 45 | | 2 | B | 15 | 30 | | 3 | C | 30 | 20 |

Mirror 'X' is used to concentrate sunlight in solar furnace and Mirror 'Y' is fitted on the side of the vehicle to see the traffic behind the driver. Which of the following statements are true for the two mirrors ?

An object is placed at a distance of 30 cm in front of a concave mirror of focal length 20 cm. Use mirror formula to determine the position of the image formed in this case.

The linear magnification produced by a spherical mirror is + 3. Based on this statement answer the following questions :