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At the top of the mountain the temperatu...

At the top of the mountain the temperature is `-13^(@)C` and the barometer reads 68 cm of Hg. At the bottom the temperature is `27^(@)C` and the barometer reads 70 cm of Hg. What is the ratio of the densities of the air at the mountain to that the sea level?

A

1.03

B

1.12

C

1.15

D

1.24

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PHYSICS GALAXY - ASHISH ARORA-HEAT AND THERMAL EXPANSION-NUMERICAL MCQs SINGLE OPTIONS CORRECT
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  2. A linear accelerator consists of a hundred brass discs tightly fitted ...

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  3. At the top of the mountain the temperature is -13^(@)C and the baromet...

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  4. 300 grams of water at 25^@ C is added to 100 grams of ice at 0^@ C. Th...

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  5. 100 g of ice at 0^(@)C is mixed with 100 of water 80^(@)C. The final t...

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  6. Thermocouples are used to measure temperature in the linear parts of t...

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  7. When a platinum resistance thermometer is put in contact with ice, ste...

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  8. When a celsium thermometer reads 90^(@)C, a faulty Fahrenheit thermome...

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  9. The upper and lower fixed points of a faulty mercury thermometer are 2...

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  10. Two straight metallic strips each of thickness t and length l are rive...

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  11. A metal cube of length of 10.0 mm at 0^(@)C is heated to 200^(@)C. Gi...

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  12. Two thermometers x and y fundamental intervals of 80^(@) and 120^(@). ...

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  13. Which of the following temperatures is the highest?

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  14. A difference of temperature of 25^(@)C is equivalent to a difference o...

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  15. A thermometer has wrong calibration (of course at equal distances and ...

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  16. A fixed mass of an ideal gas is maintained at constant volume. The pre...

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  17. A graph is plotted between the temperature of a copper cube in .^(@)C ...

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  18. At what temperature do the Kelvin and Celsius scales coincide?

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  19. The resistance of the platinum resistance thermometer at the triple po...

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  20. An iron metre rod is allowed an error of 1 part per milliion. If the c...

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