World geography Quiz 6 September 22, 2018 September 22, 2018 Please enter your email: 1. The ‘Solar Corona’ mainly consists of: molten lava ice gases cosmic rays 2. If there is no Sun, the colour of the sky would be: orange black blue yellow 3. The Saturn rings were discovered by: Newton Copernicus Galileo none of these 4. 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 5. The time required by moonlight to reach the earth is : 1.3 sec 2 sec 2.3 sec 1 sec 6. The strongest evidence that comets are members of our solar system comes from: their composition the shape and length of their tails the shape of their orbits their effect on the lives of man 7. The radiant energy of the sun is transmitted in the form of: long waves particles short waves none of these 8. Foucault experiment is proof of which one of the following? Revolution of Earth Rotation of Earth Rotation of Moon Revolution of Moon 9. 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 10. 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] the orbit of Venus is inside the earth’s orbit whereas the orbit of Jupiter lies outside the orbit of the earth Venus is much closer to the earth than Jupiter Venus reflects lesser amount of sunlight than Jupiter Venus is much smaller than Jupiter Loading … Question 1 of 10 Share this:WhatsAppTelegramTweet Related