Physics, asked by nahgenikajoshinigd, 1 year ago

How ill you show that there is vacuum above the surface of mercury in a barometer? What name is given to this vacuum?

ICSE Class 9 Physics Chapter Pressure in Fluids and Atmospheric Pressure

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Answered by Anonymous

99

If drop of water or alcohol is introduced in the space above mercury column,then the barometric height drops,as liqiuid (water or alcohol) vaporises in the vacuum and exerts pressure on the surfaceof mercury,thereby forcing it to fall down...the name givem to the vacuum is torricellian vaccuum..

Answered by sanjuashmita

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