+3 votes
in JEE by kratos

A block of mass 500g and specific heat 400j/kg k is attached with a spring of spring constant 800N/m. Now block is dipped in water of mass 1kg and specific heat 4184J/kgk. Now the spring is elongated by 2cm and released. Find rise in temperature of water and block system when block finaly comes to rest.

(1) 7.64 x 10-4K

(2) 3.64 x 10-3k

(3) 3.64 x 10-5k

(4) 3.36 x 10-6k

1 Answer

+3 votes
by kratos
 
Best answer

The correct option (3) 3.64 x 10-5k

Explanation:

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