SATHEE: Properties Of Solids And Liquids Question 348

Properties Of Solids And Liquids Question 348

Question: The work done in blowing a soap bubble of 10 cm radius is (Surface tension of the soap solution is $\frac{3}{100} N / m$ )[MP PMT 1995; MH CET 2002]

Options:

A) $75.36 \times 10^{- 4} j o u l e$

B) $37.68 \times 10^{- 4} j o u l e$

C) $150.72 \times 10^{- 4} j o u l e$

D) $75.36 j o u l e$

Show Answer

Answer:

Correct Answer: A

Solution:

$W = 8 π R^{2} T = 8 \times 3.14 \times (10 \times 10^{- 2}) \times \frac{3}{100}$

$= 7.536 \times 10^{- 3} J$

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Properties Of Solids And Liquids Question 348

Question: The work done in blowing a soap bubble of 10 cm radius is (Surface tension of the soap solution is 3100N/m )[MP PMT 1995; MH CET 2002]

Options:

Answer:

Solution:

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Question: The work done in blowing a soap bubble of 10 cm radius is (Surface tension of the soap solution is $\frac{3}{100} N / m$ )[MP PMT 1995; MH CET 2002]