At the top of the mountain, the thermometer reads `0^(@)C` and the barometer reads
Channel: Doubtnut
Date: 2020-07-26

At the top of the mountain, the thermometer reads `0^(@)C` and the barometer reads `710 mm Hg`. At the bottom of the mountain the temperature is `30^(@)C` and the pressure is `760 mm Hg`. The ratio of the density of air at the top with that at the bottom is