If few drops of water are introduced in the barometer tube, what would be the effect on the barometric height?

What are the effects of water pollution ?

What is the effect on excess water in food material?

If a few drops of a concentrate acid accidently spills over the hand of a student, what should be done?

A jar contains a gas and a few drops of water at TK The pressure in the jar is 830 mm of Hg The temperature of the jar is reduced by 1% The vapour pressure of water at two temperatures are 30 and 25 mm of Hg Calculate the new pressure in the jar .

A concave mirror is held inside water.What would be the cahgne in the focal length of the mirror?

If earth suddenly stops rotating about its axis, what would the effect on g? Would this effect be same at all places?

A measuring jar of internal diameter 10 cm is partially filled with water. Four equal spherical balls of diameter 2 cm each is dropped in it and they sink down in water completely. What will be the change in the level of water in the jar?