1
WB JEE 2016
MCQ (Single Correct Answer)
+1
-0.25
1000 droplets of water having 2 mm diameter each coalesce to form a single drop. Given the surface tension of water is 0.072 Nm$$-$$1. The energy loss in the process is
A
8.146 $$ \times $$ 10$$-$$4 J
B
4.4 $$ \times $$ 10$$-$$4 J
C
2.108 $$ \times $$ 10$$-$$5 J
D
4.7 $$ \times $$ 10$$-$$t J
WB JEE Subjects