World geography Quiz 6 September 22, 2018 September 22, 2018 Please enter your email: 1. Foucault experiment is proof of which one of the following? Rotation of Moon Revolution of Moon Revolution of Earth Rotation of Earth 2. Comets are celestial bodies moving about the solar system in elliptical or hyperbolic orbits, usually accompanied by a shining tail hyperbolic orbit without projecting any tail or head elliptical orbits usually accompanied by a long shining tail hyperbolic orbit always accompanied by a shining head 3. If there is no Sun, the colour of the sky would be: yellow blue black orange 4. The radiant energy of the sun is transmitted in the form of: particles long waves short waves none of these 5. The time required by moonlight to reach the earth is : 2 sec 1.3 sec 2.3 sec 1 sec 6. While Venus is seen only for one to two hours either after sunset or before sunrise, Jupiter is seen for the whole night whenever it is visible in the sky. The reason for this is that: [CDS 2000] Venus is much smaller than Jupiter Venus is much closer to the earth than Jupiter Venus reflects lesser amount of sunlight than Jupiter the orbit of Venus is inside the earth’s orbit whereas the orbit of Jupiter lies outside the orbit of the earth 7. The Saturn rings were discovered by: Galileo Newton Copernicus none of these 8. The constellations of stars appear at different positions in the sky at different times during night mainly: because celestial bodies are changing their positions all the time because of optical illusion because earth rotates about its axis because earth revolves round the sun 9. The ‘Solar Corona’ mainly consists of: gases molten lava cosmic rays ice 10. The strongest evidence that comets are members of our solar system comes from: the shape of their orbits their effect on the lives of man their composition the shape and length of their tails Loading … Question 1 of 10 Share this:WhatsAppTelegramTweet Related