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The velocity of sound in any gas depends upon

1. wavelength of sound only
2. density and elasticity of gas
3. intensity of sound waves only
4. amplitude and frequency of sound

Correct answer: density and elasticity of gas

Solution

The velocity of sound in a gas is determined by the medium's density and elasticity, as per the formula v = √(E/ρ), where E is the modulus of elasticity and ρ is the density.

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