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Geography |
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| 256)When and by whom where the rings of saturn discovered? | |||
| Newton, 1682 | Tycho Brahe, 1590 | ||
| Copernicus, 1640 | Galileo 1610 | ||
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| 257)The distance the earth covers in one complete revolution around the sun | |||
| 8.4 X 106km | 9.4 X 108km | ||
| 15.0 X 1010km | 20.4 X 106km | ||
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| 258)The temperature at the surface and core of the sun respectively about | |||
| 6000K and 20 million K | 8000K and 15 million K | ||
| 9000K and 12 million K | 10000K and 10 million K | ||
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| 259)Nearly what proportion of the total amount of sun's energy coming to the earth is directly reflected back into the space by its top atmosphere? | |||
| One third | One fourth | ||
| One fifth | One tenth | ||
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| 260)The number of constellations in the Milky Way Galaxy is | |||
| 6 | 8 | ||
| 10 | 12 | ||
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| 261)Which planet reflects back the highest percentage of light it receives from the sun compare to any other planets in the solar system? | |||
| Jupitar | Mars | ||
| Venus | Earth | ||
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| 262)Who wrote the book "The Harmonics of the World"? | |||
| Johannes Kepler | Issac Newton | ||
| Albert Einstein | Giordano Bruno | ||
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| 263)The apparent motion of celestial objects as seen from earth is from east to west | |||
| Because celestial objects move from east to west | due to daily rotation of the Earth on its axis | ||
| due to the revolution of the earth | None of these | ||
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| 264)What will happen if the earth stops its rotation on its axis ? | |||
| There will be no seasons on the earth | There will be no day and night as it is now | ||
| The earth will be very hot plane like mercury | None of these | ||
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| 265)The sun is | |||
| Made of rock and metal | a solid body | ||
| a mass of hot gases | partly rock and metal and partly hor gases | ||
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| 266)Nebular hypothesis is a theory about the origin of the | |||
| planets | solar system | ||
| sun | galaxy | ||
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| 267)Triton is a natural satellite of | |||
| Saturn | Uranus | ||
| Neptune | Jupiter | ||
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| 268)Why does the moon always keep roughly the same face turned towards us? | |||
| because it does not rotate on its axis | because it does not have atmosphere | ||
| because it takes almost the same time to rotate on its axis and to go around the earth | because its surface is identical everywhere | ||
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| 269)Who among the following invented the principle of reflecting telescope, which is now used as the world's largest optical telescope? | |||
| Isaac Newton | Galileo Galilie | ||
| Tycho Brahe | Nicolas Copernicus | ||
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| 270)The first planet to be discovered with a telescope was | |||
| Mars | Saturn | ||
| Uranus | Jupiter | ||
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