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