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1. |
It takes 2.0 seconds for a sound wave to travel between two fixed points when the day temperature is \[{{10}^{o}}\]C. If the temperature rise to \[{{30}^{o}}\]C the sound wave travels between the same fixed parts in [Orissa JEE 2003] |
A. | 1.9 sec |
B. | 2.0 sec |
C. | 24 |
D. | 2.2 sec |
Answer» B. 2.0 sec | |