Advertisements
Advertisements
Question
The amount of vapour in 1 cu.m. of air shows the ______.
Options
Cumulonimbus
Relative humidity
Absolute humidity
Condensation
Vapour-holding capacity
Advertisements
Solution
The amount of vapour in 1 cu.m. of air shows the Absolute humidity.
Explanation:
Absolute humidity is the amount of water vapour in 1 cu.m of the atmosphere. For instance, near coastal regions, absolute humidity in the air is likely to be higher than near the poles.
RELATED QUESTIONS
What type of clothes should we wear in summer?
Wet clothes dry more quickly on a warm dry day than on a cold humid day. Explain.
A patient suffering from high fever is advised to put wet clot strips on his forehead. Why?
Which produces more severe burns : boiling water or steam ? Why ?
What is evaporation ? State the various factors which affect evaporation.
The evaporation of water increases under the following conditions :
The scientists now say that there are actually five states of matter A, B, C, D and E. The state A has a fixed volume but no fixed shape. The state B can be compressed very easily by applying pressure and state C has a fixed shape as well as a fixed volume. The state D is a mixture of free electrons and ions whereas state E is named after an Indian scientist and a famous physicist.
- Name the physical states (i) A (ii) B (iii) C (iv) D, and (v) E
- Name one substance belonging to state C which can directly change into vapours on heating. What is this process known as ?
- Name one substance which normally belongs to state B but whose solid form changes directly into gaseous state.
- Name the most common substance belonging to state A.
- Which state of matter makes the sun and other stars to glow ?
Why is the air in a region dry?
Look at Fig. 1.3 and suggest in which of the vessels A,B, C or D the rate of evaporation will be the highest? Explain.
The rate of evaporation is more when the surface area is greater.
