Question

1. Atmospheric pressure can support a column of water (a) 10 cm high (b) 10 m high (c) 76 cm high (d) 76 m high ​

Answer 1

Answer:

At sea level atmospheric pressure can support approximately 760mm column of mercury equivalent to approximately 10m column of water. Mercury is thus preferred as a barometric fluid since it gives a shorter and measurable column compared to water.