Properties Of Solids And Liquids Question 359
Question: A film of water is formed between two straight parallel wires of length 10cm each separated by 0.5 cm. If their separation is increased by 1 mm while still maintaining their parallelism, how much work will have to be done (Surface tension of water =
Options:
A)
B)
C)
D)
Show Answer
Answer:
Correct Answer: B
Solution:
Increment in area of soap film =
Work done =
