JEE Main · PhysicsMedium
- A.$\sqrt{5/2}$
- B.$\sqrt{2/5}$
- C.$\sqrt{5}$
- D.$\sqrt{2}$
Show correct answer & step-by-step solution
Correct answer: A — $\sqrt{5/2}$
Solution
The root mean square speed is given by . Since temperature is constant, is inversely proportional to the square root of the molar mass . The ratio is .
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