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