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