How to find the number of reflections in parallel mirrors?

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Count how many reflections take place between two parallel mirrors

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Wow, this is what we miss during jee prep, we must focus more on derivations!

suryanshkambojy
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thank you soo much brother this was very useful to me thank you soo much

outofpandena
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Hello sir! May I ask if you use a circular mirror, is the length "l" just the diameter of the circular mirror?

Chwedy
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I am in 10th grade right mow and couldn't understand anything
Thank you for clearing the concept sir

namitagupta
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Sir I have a question as per this formula the number of reflections obtained+1 is final answer
But question in DC pnaday A and B are aligned parallel having length 2√3m and distance b/w 2 mirrors 0..2m..as per this formula answer should be 31 but it is showing 30 can u explain this to me please 😞

_peaceful