CTET 2 Math and Science 7 Jan 2022 Paper

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Question : 73 of 150

Marks: +1, -0

Which of the following statements is incorrect regarding sound

Sound from a violin and a flute played at same time travel at same speed
Two sound waves of same intensity will always have equal loudness
Speed of sound in hot air is more than that a room temperature.
Speed of sound is affected by density of medium.

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