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 2.3 sec 1 sec 2 sec 2. Foucault experiment is proof of which one of the following? Revolution of Earth Revolution of Moon Rotation of Moon Rotation of Earth 3. The constellations of stars appear at different positions in the sky at different times during night mainly: because earth revolves round the sun because of optical illusion because celestial bodies are changing their positions all the time because earth rotates about its axis 4. If there is no Sun, the colour of the sky would be: orange yellow blue black 5. 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 smaller than Jupiter Venus is much closer to the earth than Jupiter Venus reflects lesser amount of sunlight than Jupiter 6. The Saturn rings were discovered by: none of these Galileo Copernicus Newton 7. The ‘Solar Corona’ mainly consists of: cosmic rays ice gases molten lava 8. Comets are celestial bodies moving about the solar system in 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 elliptical orbits usually accompanied by a long shining tail 9. 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 10. The radiant energy of the sun is transmitted in the form of: short waves long waves none of these particles Loading … Question 1 of 10 Share this:WhatsAppTelegramTweet Related