1). That the earth is almost spherical, was first stated by
| A). Ptolemy |
| B). Aryabhatta |
| C). Pythagoras |
| D). Copernicus |
|
2). The correct sequence in decreasing order of the proportion of the given gases in the atmosphere is
| A). argon, carbon dioxide, oxygen |
B). carbon dioxide, oxygen, argon
|
C). oxygen, argon, carbon dioxide
|
D). argon, oxygen, carbon dioxide
|
|
3). The forms of matter are
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4). Refrigeration is a process which
A). kills bacteria
|
| B). slows down the bacterial growth |
| C). inactivates the bacteria |
| D). plasmolyses the bacteria |
|
5). The weather 'map telecast' in TV is photographed by the satellite orbiting at a height of
| A). 36,000 km |
| B). 3,600 km |
| C). 3,600 miles |
| D). 360 km |
|
6). The unit for work and energy is
| A). Joule |
| B). Newton |
| C). Coulomb |
| D). Dioptre |
|
7). The function of pace-maker is
| A). regulation of urine formation |
| B). regulation of digestion |
| C). initiation of heartbeat |
| D). initiation of respiration |
|
8). Einstein got the Nobel Prize for
| A). Relativity |
B). Photo-electric effect
|
| C). Polarisation |
| D). Radioactivity |
|
9). Asia's biggest astronomical telescope is at
| A). Kavanur |
| B). Kodaikanal |
| C). Bangalore |
| D). New Delhi |
|
10). An example of semi-conductor is
| A). German silver |
| B). Germanium |
| C). Phosphorus |
| D). Arsenic |
|
