If absolute temperature of deuterium is made 16 times its normal value, then the speed of the sound waves will increase by a factor of:
Correct answer: A. 16
- A. 16
- B. 8
- C. Speed remains same
- D. None is true
Explanation
If the absolute temperature of deuterium is increased by a factor of 16, the speed of sound waves in deuterium will also increase by the same factor. This is because the speed of sound in a gas is directly proportional to the square root of the absolute temperature. So, if the temperature is increased by 16 times, the speed of sound waves will also increase by the square root of 16, which is 4. Therefore, the speed of sound waves will increase by a factor of 16.
This question appeared on the KMU Centralized Admission Test 2021 paper, which you can sit online with every answer explained.
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