Space & Astronomy
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Q181.The sun is ____times bigger than the Earth.
Correct Answer: C
The sun is 109 times bigger than the Earth. Astronomical observations and measurements establish this relationship among the relevant celestial bodies.
Q182.The Sun is a ____?
Correct Answer: A
The Sun is a Star. Astronomical observations and measurements establish this relationship among the relevant celestial bodies.
Q183.The Sun is at an average distance of about____ million kilometers away from Earth?
Correct Answer: B
The Sun is at an average distance of about 150 million million kilometers away from Earth. Astronomical observations and measurements establish this relationship among the relevant celestial bodies.
Q184.The sun is containing ____ % mass of the solar system?
Correct Answer: D
The sun is containing 99.86% % mass of the solar system. Astronomical observations and measurements establish this relationship among the relevant celestial bodies.
Q185.The sun is expected to exhaust its hydrogen fuel in about 5 billion years. What will be its effect?
Correct Answer: C
The sun is expected to exhaust its hydrogen fuel in about 5 billion years. What will be its effect: The sun will then expand into a red giant and possibly swallow the inner planets, including Earth. Astronomical observations and measurements establish this relationship among the relevant celestial bodies.
Q186.The Sun produces most of its energy by____?
Correct Answer: A
The Sun produces most of its energy by Nuclear fusion. Astronomical observations and measurements establish this relationship among the relevant celestial bodies.
Q187.The sun’s atmosphere is divided into following three parts:-
Correct Answer: C
The sun’s atmosphere is divided into following three parts:-: the photosphere, the chromosphere, and the corona. Astronomical observations and measurements establish this relationship among the relevant celestial bodies.
Q188.The sun’s surface is called ____?
Correct Answer: D
The sun’s surface is called Photosphere. Astronomical observations and measurements establish this relationship among the relevant celestial bodies.
Q189.The sunlight can reach a depth of____meters in the ocean
Correct Answer: B
The sunlight can reach a depth of 200 meters in the ocean. Astronomical observations and measurements establish this relationship among the relevant celestial bodies.
Q190.The term ‘Blue Shift’ is used to indicate?
Correct Answer: A
The term ‘Blue Shift’ is used to indicate: Doppler effect in which an object appears bluer when it is moving towards the observer or observer is moving towards the object. This description follows from the defining characteristics and established facts associated with the subject.
Q191.The time in which Earth completes its revolution around the Sun is____?
Correct Answer: A
The time in which Earth completes its revolution around the Sun is 365.25 days. Astronomical observations and measurements establish this relationship among the relevant celestial bodies.
Q192.The time period of a pendulum when taken to the Moon would?
Correct Answer: D
The time period of a pendulum when taken to the Moon would: increase. Astronomical observations and measurements establish this relationship among the relevant celestial bodies.
Q193.The time taken by Sun to revolve around the center of our galaxy is____?
Correct Answer: B
The time taken by Sun to revolve around the center of our galaxy is 250 million years. Astronomical observations and measurements establish this relationship among the relevant celestial bodies.
Q194.The Time taken for sunlight to reach the Earth is____?
Correct Answer: C
The Time taken for sunlight to reach the Earth is 8 mins 20 sec. Astronomical observations and measurements establish this relationship among the relevant celestial bodies.
Q195.The value of acceleration due to gravity is minimum on which of these planets?
Correct Answer: C
The value of acceleration due to gravity is minimum on which of these planets: Mercury. Astronomical observations and measurements establish this relationship among the relevant celestial bodies.
Q196.Total number of moons in entire Solar System are:____?
Correct Answer: B
Total number of moons in entire Solar System are: More Than 200. Astronomical observations and measurements establish this relationship among the relevant celestial bodies.
Q197.Troposphere extends from planetary surface to bottom of ____?
Correct Answer: A
Troposphere extends from planetary surface to bottom of Stratosphere. Astronomical observations and measurements establish this relationship among the relevant celestial bodies.
Q198.We always see the same face of the moon, because?
Correct Answer: C
We always see the same face of the moon, because: It takes equal time for revolution around the earth and rotation on its own axis. Astronomical observations and measurements establish this relationship among the relevant celestial bodies.
Q199.What causes the Moon’s phases?
Correct Answer: A
The Moon’s phases occur because the Sun always illuminates half of the Moon while the Moon orbits Earth. From Earth, we see changing portions of that illuminated half during the lunar month.
Q200.What inspired reflecting road lights to be invented?
Correct Answer: B
What inspired reflecting road lights to be invented: The light a cat’s eyes gave off on a fence. The result follows from how light is reflected, refracted, focused, or distributed across the electromagnetic spectrum.