जैसा की हम जानते हैं एक plane mirror जितनी distance पे object होता है उतनी ही distance पे image की formation करता है....... इस तरह से-
object distance=15 cm
image distance=15 cm

और
object distance + image distance= distance between object and image

i.e 15+15=30cm

image और object के बीच का distance= 30cm.

Explanation:

When a candle is kept in front of a plane mirror, its image is formed behind the mirror. The distance between the candle and its image can be calculated using the following formula:

Distance between the candle and its image = 2 x distance between the candle and the mirror

Calculation:

Given, distance between the candle and the mirror = 15 cm

Using the above formula, we can calculate the distance between the candle and its image as:

Distance between the candle and its image = 2 x 15 cm = 30 cm

Therefore, the distance between the candle and its image is 30 cm.

Explanation:

- When an object is placed in front of a plane mirror, an image is formed behind the mirror.
- The image formed is virtual, upright, and of the same size as that of the object.
- The distance between the object and its image is twice the distance between the object and the mirror.
- This is because the light rays from the object that are reflected by the mirror travel the same distance to reach the image as they would if they had travelled directly from the object to the image.

Formula:

Distance between object and image = 2 x distance between object and mirror

Calculation:

Given, distance between the candle and the mirror = 15 cm

Distance between candle and its image = 2 x 15 cm = 30 cm

Therefore, the distance between the candle and its image is 30 cm.