Tag: wind and rain

Questions Related to wind and rain

Sea breeze and land breeze

  1. are caused by currents set up in air due to conduction

  2. are caused by currents set up in air due to convection

  3. are caused by currents set up in air due to radiation

  4. have no relation to conduction, convection and radiation


Correct Option: A

State whether true or false.
The land and sea breezes are based on the fact that the specific heat of vaporisation of steam is very high.

  1. True

  2. False


Correct Option: A
Explanation:
The statement is true.
The specific heat capacity of water is much higher than that of sand. Air above land becomes more warmer than water during day. So cold air above water or sea blows to land known as sea breeze and vice versa for land breeze.

A small weight put on the pressure cooker increased the pressure of steam because.

  1. Density of metal is very high

  2. Area of contact is very small

  3. It is air tight

  4. Pressure builds up irrespective of the weight placed


Correct Option: B