Universe - Study Mode
[#91] The Planet which comes close to the size of Earth is ________.
Correct Answer
(A) Venus
Explanation
Solution: Venus is the closest planet to Earth (it's also the most similar in size). But its proximity to our planet depends on the orbits of both. The two planets travel in ellipses around the sun, and so the distance between them is constantly shifting.
[#92] The Milky way extends through a distance ________
Correct Answer
(C) 10 5 light years
Explanation
Solution: The Milky way extends through a distance 10 5 light years.
[#93] Which planet shows the phases like Moon?
Correct Answer
(C) Venus
Explanation
Solution: Venus, which have orbits that are smaller than the Earth's, exhibit the full range of phases as does the Moon, when seen through a telescope. Its phases are "full" when they are at superior conjunction, on the far side of the Sun as seen from the Earth.
[#94] Which of the following Planets is the brightest?
Correct Answer
(D) Venus
Explanation
Solution: Venus is so bright because its thick clouds reflect most of the sunlight that reaches it (about 70%) back into space, and because it is the closest planet to Earth. Venus can often be seen within a few hours after sunset or before sunrise as the brightest object in the sky (other than the moon).
[#95] Pulsar are
Correct Answer
(C) Rapidly rotating stars
Explanation
Solution: A pulsar is a highly magnetized rotating neutron star that emits a beam of electromagnetic radiation. This radiation can be observed only when the beam of emission is pointing toward Earth, and is responsible for the pulsed appearance of emission.