JEE Previous Year Question
The velocity of sound in air is doubled when the temperature is raised from to . The value of is .
Topic: JEE PYQ
Answer: 819. Full step-by-step solution below.
Correct answer: 819
Solution
(819) The velocity of sound in air depends on temperature as (absolute temperature).If the velocity doubles:
.
Squaring: .
With and :
, giving .
Therefore .
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