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Q.

Statement I: Under given conditions of pressure and temperature, sound travels faster in a monoatomic gas than in diatomic gas.

Statement II: Opposition for wave to travel is more in diatomic gas than monoatomic gas.

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a

Both statement I and statement II are true and statement II is the correct explanation of statement I.
 

b

Both statement I and statement II are true but statement II is not the correct explanation of statement I.
 

c

Statement I is true but statement II is false 
 

d

Statement I and statement II are false 
 

answer is C.

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Detailed Solution

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Velocity of sound in a gas v=γPρ. For monoatomic gas γ = 1.67; for diatomic γ =: 1.40. Therefore v is larger in case of monoatomic gas compared to its values in diatomic gas

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