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parag
Questions (2)
fical lengt of concave mirror =50cm m=1รท2 cm .find the position of the object
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When a body hanging form a spring balance is immersed in water it floats just below the surface of water and shows 100 g loss in
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Answers (1)
gain in potential energy=loss in kinetic energy so 1/2mv^2=mgh v^2=gh v=underroot of 2gh =underroot of 2*10*.2 =2m/s
