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2 when the submarine is at some depth 'h' and emits an circular area of light with radius r. if the submarine goes down with depth 2h, then what effect would it have on the area of circular light on the surface of water ? wil it widen or diminish?


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when the submarine is at some depth 'h' and emits an circular  area of light with radius r. if the submarine goes down with depth 2h, then what effect would it have on the area of circular light on the surface of water ?

wil it widen or diminish?


Grade:upto college level

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