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Question

Question: A mercury drop of 1 cm radius is broken into \(\left. 35 \times 10 ^ { - 3 } \mathrm {~N} / \mathrm ...

A mercury drop of 1 cm radius is broken into 35×103 N/cm)\left. 35 \times 10 ^ { - 3 } \mathrm {~N} / \mathrm { cm } \right)

A

4.4×103J4.4 \times 10 ^ { - 3 } J

B

C

8.8×104J8.8 \times 10 ^ { - 4 } J

D

104 J10 ^ { 4 } \mathrm {~J}

Answer

4.4×103J4.4 \times 10 ^ { - 3 } J

Explanation

Solution

E=4πR2T(n1/31)E = 4 \pi R ^ { 2 } T \left( n ^ { 1 / 3 } - 1 \right)

=4×3.14×104×35×101(106/31)= 4 \times 3.14 \times 10 ^ { - 4 } \times 35 \times 10 ^ { - 1 } \left( 10 ^ { 6 / 3 } - 1 \right)