MCQ Questions for Class 11 Geography: Ch 9 Solar radiation, heat balance and temperature

MCQ Questions for Class 11 Geography: Ch 9 Solar radiation, heat balance and temperature

1. The earth radiates energy to the atmosphere in:
(a) Long wavelengths
(b) Radiation
(c) Insolation
(d) Short wavelengths
► (a) Long wavelengths

2. The days are longest at
(a) Thiruvananthapuram.
(b) Hyderabad.
(c) Chandigarh.
(d) Nagpur.
► (a) Thiruvananthapuram.

3. Differences in pressure on the earth surface causes:
(a) Winds
(b) Precipitation
(c) Hail
(d) Seasons
► (a) Winds

4. What is Isotherm?
(a) The line joining the places of equal temperature.
(b) The incoming short wave radiation.
(c) The line joining the places of equal pressure.
(d) None of the above.
► (a) The line joining the places of equal temperature.

5. Higher latitudes are not permanently frozen because of
(a) Presence of warm and cold currents
(b) Very less insolation
(c) Redistribution of surplus heat energy pole wards from tropics
(d) Local aspects
► (c) Redistribution of surplus heat energy pole wards from tropics

6. The envelop of the air is called _________
(a) Atmosphere
(b) Troposphere
(c) Stratosphere
(d) None of the above
► (a) Atmosphere

7. Maximum insolation is received over the ____________
(a) Equator
(b) Tropical areas
(c) Sub-tropical areas
(d) Poles
► (c) Sub-tropical areas

8. Insolation refers to ________
(a) Wind direction
(b) Solar radiation
(c) Precipitation
(d) None of the above
► (b) Solar radiation

9. The heat energy absorbed by a known area in a fixed time is determined with the help of an instrument called
(a) Psychrometer
(b) Pyrheliometer
(c) Thermometric well
(d) Any instrument
► (b) Pyrheliometer

10. This process of vertical heating of the atmosphere is known as ________.
(a) Psychrometer
(b) Convection
(c) Evaporation
(d) None of the above
► (b) Convection

11. The sun is vertically over head at noon on 21st June at
(a) the equator.
(b) 23.5 degree N.
(c) 23.5 degree S.
(d) 66.5 degree N.
► (b) 23.5 degree N.

12. ______ are lines joining places having equal temperature. 
(a) Isotherms
(b) Evaporation
(c) Convection
(d) Pyrheliometer
► (a) Isotherms
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