Question:
A spherical balloon of radius $3 \mathrm{~cm}$ containing helium gas has a pressure of $48 \times 10^{-3}$ bar. At the same temperature, the pressure, of a spherical balloon of radius $12 \mathrm{~cm}$ containing the same amount of gas will be______ $\quad \times 10^{-6}$ bar.
Solution:
Official Ans. by NTA (750.00)
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