PYQ NEET- Thermal Properties Of Matter L-2

Question: The amount of energy required to form a soap bubble of radius $2 \mathrm{~cm}$ from a soap solution is nearly: (surface tension of soap solution $=0.03 \mathrm{~N} \mathrm{~m}^{-1}$ )#

A) $5.06 \times 10^{-4} \mathrm{~J}$

B) $3.01 \times 10^{-4} \mathrm{~J}$

C) $50.1 \times 10^{-4} \mathrm{~J}$

D) $30.16 \times 10^{-4} \mathrm{~J}$

Answer: $3.01 \times 10^{-4} \mathrm{~J}$#