Science, asked by yadavsakshiy, 9 months ago

please solve these three questions if you don't know the answer so don't answer

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Answered by MrGamographer

Answer:

12. Ans:13

Explanation:

You see the Light Coming to the Mirror is Parallel to Each other i.e, They come from Infinity.

Now, We Know, the Light Coming from Infinity, After striking with the Mirror/Lens, Gets concentrated at its Focus. Either In a Real or Virtual Manner. Here the Case is Real(Since, it is a Concave mirror).

You See the Focus is 13 Units away from the Concave Mirror.(21 - 8)

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