If `n` drops of a liquid, form a single drop, then

Options

A. some energy will be absorbed in the process
B. some energy will be released in the process
C. some energy absorbed or released in the process
D. energy neither absorbed nor released in this process

Answer

B

Explanation

`("Volume of 1 drop of liquid")= ("Volume of n droplets of liquid ")`
` 4/3piR^(3) = nxx4/3 pir^(3)`
` :. R = n^(1//3)r`
Initial S.E `= nxx 4pir^(2) xx T = nE`
Final S.E ` = 4 piR^(2) xxT = 4 pir^(2) n^(2//3) xx T`
` = 2^(2//3)`E
Energy released ` = E_(1) - E_(2)= E (n-n^(2//3))`