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Question

A block of mass  $$2 { kg }$$  and specific gravity  $$\dfrac { 5 } { 2 }$$  is attached with a spring of force constant  $$k = 100  { N } /  { m }$$  and is half dipped in the water. If extension in the spring is  $$1 { cm } .$$  The force exerted by the bottom of the tank on block is (take  $$g = 10  { m } /  { s } ^ { 2 }$$ )
1425878_12ca77e5bb4345988b53e3b129a4ef62.png


A
20N
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B
19N
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C
15N
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D
16N
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Solution

The correct option is C $$15 N$$
Hence, option $$C$$ is correct answer.
1380342_1425878_ans_2bc0c1e5c57b42e4afea583a3d9b6bf5.jpg

Physics

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