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