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If the number of images of a candle flame are 1) The first image is the brightest 2) the second image is the brightest 3) the last image is the brightest 4) the image are equally bright Plz answer with explaination

If the number of images of a candle flame are
1) The first image is the brightest
2) the second image is the brightest
3) the last image is the brightest 
4) the image are equally bright
Plz answer with explaination

Grade:12th pass

1 Answers

Arun
25763 Points
2 years ago
When an object is observed through a thick mirror, silvered at its back, a large number of images are obtained. Out of all the images, the second image is the brightest. In this case, the first image is formed by reflection at the first surface, which is the unsilvered surface of the mirror. The second image is formed after reflection from rear silvered surface, which sends maximum amount of light. Rest of the images formed are due to internal multiple reflections which occur inside the mirror. These images contain lesser amount of light and so their intensity gradually decreases.

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