World geography Quiz 6 September 22, 2018 September 22, 2018 Please enter your email: 1. The time required by moonlight to reach the earth is : 1.3 sec 1 sec 2 sec 2.3 sec 2. 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 3. If there is no Sun, the colour of the sky would be: black yellow orange blue 4. Foucault experiment is proof of which one of the following? Rotation of Earth Rotation of Moon Revolution of Earth Revolution of Moon 5. The radiant energy of the sun is transmitted in the form of: particles long waves none of these short waves 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 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 7. 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 without projecting any tail or head hyperbolic orbit always accompanied by a shining head 8. The strongest evidence that comets are members of our solar system comes from: the shape of their orbits the shape and length of their tails their composition their effect on the lives of man 9. The ‘Solar Corona’ mainly consists of: cosmic rays molten lava ice gases 10. The Saturn rings were discovered by: Copernicus none of these Newton Galileo Loading … Question 1 of 10 Share this:WhatsAppTelegramTweet Related