11). A ray of white light strikes the surface of an object. If all the colours are reflected the surface would appear:
| A). Black |
| B). White |
| C). Grey |
| D). Opaque |
|
12). Magnetic, electrostatic and gravitational forces come under the category of
| A). non contact forces |
| B). contact -forces |
| C). frictional forces |
| D). non frictional forces |
|
13). Dispersion process forms spectrum due to white light falling on a prism. The light wave with, shortest wavelength :
| A). refracts the most |
| B). does not change the path |
| C). refracts the least |
| D). is reflected by the side of the prism. |
|
14). The main source of energy in Sun is:
| A). Nuclear fusion |
| B). Nuclear fission |
| C). Chemical reaction |
| D). Mechanical energy |
|
15). A liquid initially contracts when cooled down to 4 degree C but on further cooling down to 0 degree C, it expands. The liquid is :
| A). Alcohol |
| B). Water |
| C). Molten iron |
| D). Mercury |
|
16). Which one among the following may be considered a reason for India having 'high dependency' ratio ?
| A). High rate of population growth |
| B). Large section of population is in the age group of 0-14 years |
| C). High percentage of population in the age group of 15 59 years |
| D). Low pace of human resource development |
|
17). Which of the following statements about Nathu 1a Pass are correct ?
1. It links Sikkim with Tibet
2. It was the main artery of the ancient Silk Route
3. It was reopened in the year 2006
Select the answer using the code given below :
| A). 1, 2 and 3 |
| B). 1 and 2 only |
| C). 2 and 3 only |
| D). 1 and 3 only |
|
18). Red soil colour is caused by :
| A). Aluminium compounds |
| B). Mercury compounds |
| C). Iron compounds |
| D). Clay |
|
19). Mid latitude cyclones :
| A). usually move across North America from east to west |
| B). are generally found only over the ocean |
| C). generally bring clear skies and little precipitation |
| D). are formed in regions of strong temperature contrasts |
|
20). The Westerlies have their origin in the :
| A). Polar highs |
| B). Subtropical highs |
| C). Equatorial lows |
| D). Sub polar lows |
|
