Physics, asked by Allengyasra, 7 months ago

i have a hollow hemisphere,i wanna use it as a parabolic dish,the thing i need is its focal point after reflection from its inner surface,principal focus i need,help me.

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Answered by malakarprasanta742

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Answer:

Wt help do you want.

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Answered by honeysingh75

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Answer:

U are follow me and I will follow u back

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