

MCQOPTIONS
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1. |
The temperature at which the speed of sound in air becomes double of its value at \[{{27}^{o}}C\] is [CPMT 1997; UPSEAT 2000; DPMT 2003] |
A. | \[{{54}^{o}}C\] |
B. | \[{{327}^{o}}C\] |
C. | Ultrasonic wave |
D. | \[-{{123}^{o}}C\] |
Answer» D. \[-{{123}^{o}}C\] | |