The work done in blowing a soap bubble of radius R is W and that to a radius 3R is W2 The ratio of work done is_________
A. 1:3
B. 3:1
C. 1:9
D. 9:1
Answer:C
The work done in blowing a soap bubble of radius R is W and that to a radius 3R is W2 The ratio of work done is_________
A. 1:3 B. 3:1 C. 1:9 D. 9:1