3. If a number of images of a candle flame are seen in a thick mirror . . . When a candle flame is placed in front of a thick mirror, multiple images are formed due to multiple reflections between the two surfaces of the mirror The first image is formed by the reflection from the front surface of the mirror and is the brightest because it undergoes only one reflection
When a lighted candle is held in front of a thick plane glass mirror . . . When a ray of light from lighted candle fall on the surface of a thick plane glass mirror, a small part of light (nearly 4%) is reflected forming first image which is faint virtual image, while a large part of light (nearly 96%) is refracted inside the glass
A number of images of a candle flame can be seen in a thick plane . . . The brightest image of a candle flame in a thick plane mirror is the first image, as it experiences the least light loss through reflections Each subsequent image becomes dimmer due to absorption and scattering of light