A small bulb is placed at a depth of 2/7 m inwater and floating opaque – InterviewSolution

1.	A small bulb is placed at a depth of 2/7 m inwater and floating opaque disc is placed over thebulb so that the bulb is not visible from the surface.The minimum diameter of the disc is (water 4/3)(1) 42 m(3) 2/7 m(2) 6 m(4) 12 m
Answer» A small bulb is placed at a depth of 2/7 m inwater and floating opaque disc is placed over thebulb so that the bulb is not visible from the surface.The minimum diameter of the disc is (water 4/3)(1) 42 m(3) 2/7 m(2) 6 m(4) 12 m

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