The pressure wave 
corresponds to the sound produced by a vibrating blade on a day when atmospheric temperature is 
. On some other day when temperature is 
the speed of sound produced by the same blade and at the same frequency is found to be 
. Approximate value of 
is:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
JEE Main 2019
On comparing with 
, we have
or 
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