Year: 2023
Topic: Thermal properties of matter
Time :
1. The amount of energy required to form a soap bubble of radius 2cm from a soap solution is nearly (surface tension of soap solution = 0.03Nm
−1
)
(1). \(5.06 × 10^{−4}J\)
(2). \(3.01 × 10^{−4}J\)
(3). \(50.1 × 10^{−4}J\)
(4). \(30.16 × 10^{−4}J\)