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