Practice Universe solar system astronomy - indian geography mcq Online Quiz (set-2) For All Competitive Exams
Q-1) The Astronaut looks the sky in the space
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(d)
The sky looks black from the space. In space, sunlight or any kind of star light does not have anything from which to bounce off.
Q-2) The Astronaut looks the sky in the space
(a)
(b)
(c)
(d)
The sky looks black from the space. In space, sunlight or any kind of star light does not have anything from which to bounce off.
Q-3) Which one of the following Stars is nearest to the Earth?
(a)
(b)
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(d)
Q-4) Among the following which planet takes maximum time for one revolution around the Sun?
(a)
(b)
(c)
(d)
Q-5) Which of the following statements about the structure of the sun is/are true? - Atoms absorb and re-radiate electromagnetic energy generated in the core moving it to the sun’s surface
- The convection zone consists of Row density gases, stirred by convection
- As the gases warm and become less dense, they rise to the sun’s surface
- The gases emit energy into space in the form of visible light, ultra-violet light and infra-red radiation
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(b)
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atoms absorb and re-radiate electromagnetic energy generated in the core moving it to the sun’s surface. The convection zone consists of low-density gases stirred by convection.
,p>As the gases warm and become less dense, they rise to the sun’s surface. The gases emit energy into space in the form of visible light, ultra-violet light and infra-red radiation.
Q-6) Who amongst the following was the first to state that the Earth was spherical?
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(d)
Q-7) Titan is the largest Moon of the Planet
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Q-8) The mean radius of the Earth is
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The mean radius of Earth is 6371 km or approximately a 6400 km
Q-9) Which planet is surrounded by a ring?
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Saturn is surrounded by a ring. Saturn has a ring around it because it is believed to be very big and has lots of moons, meaning it has a strong pull of gravity.
Another major reason is that the asteroids fling into their orbit and the rings are not solid.
Q-10) The group of stars that indicate the direction of pole, is
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(b)
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(d)
Q-11) Which of the following stars is known as Fossil star?
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White Dwarf is known as Fossil star. They are supported by electron degeneracy pressure. It amplifies the contrast with red giants.
They are both very hot and very small. They are the opposite of black holes. They are the end-products of small, low-mass stars.
Q-12) The Equatorial region has no other season except summer. What could be the reason ? - The length of day and night is more or less equal over the year
- The Earth’s rotational velocity is maximum at the Equator
- The coriolis force is zero at the Equator
Select the correct answer using the code given below :
(a)
(b)
(c)
(d)
On the equator, the day and night stay approximately the same length all year round, the earth’s rotational velocity is maximum at the Equator.
The coriolis force is greatest at the poles and 0 at the equator.
Q-13) Which of the following stars is also known as Pulsar?
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Neutron star is also known as Pulsar. A neutron star is a type of stellar remnant that can result from the gravitational collapse of a massive star.
Q-14) Consider the following statements. - The tropical year is shorter than the sidereal year.
- The solar day is longer than the sidereal day.
Which of the statements given above is/are correct?
(a)
(b)
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1 Sidereal year = 365.2564 days;
1 Tropical year = 365.2422 days;
So difference is 0.0142 days.
Q-15) Consider the following statements:- Only two planets Venus and Uranus revolve around the sun from east to west i.e., clockwise.
- While other planets revolve around the sun from west to east i.e., anti-clockwise.
Which of the above statements is/are correct?
(a)
(b)
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Only two planets Venus and Uranus revolve around the sun from east to west while other planets revolve around the sun from west to east.
Q-16) Pulsars are
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The word “pulsar” is a contraction of “pulsating star. A pulsar is formed when a massive star collapse exhausts its supply of fuel. It blasts out in a giant explosion known as a supernova, the most powerful and violent event in the universe.
Without the opposing force of nuclear fusion to balance it, gravity begins to pull the mass of the star inward until it implodes.
In a pulsar, gravity compacts the mass of the star until it forms an object composed primarily of neutrons packed so tightly that they no longer exist as normal matter.
As the star collapses, it begins to spin more rapidly in what is known as the conservation of angular momentum. The process is similar to that of an ice skater pulling their arms in close to spin faster. What is left behind is a rapidly spinning ball of tightly packed neutrons inside an iron shell.
Q-17) Hydrogen, Helium and Methane are the main gases present on
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Q-18) A meteor is
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Meteor is a small celestial body that has entered the earth’s atmosphere by the gravitational force of earth when they pass close to it.
Meteors typically occur in the mesosphere, and most range in altitude from 75 km to 100 km.
Q-19) Which one of the following may have alien life because of a very conductive environment to life?
(a)
(b)
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Q-20) Assertion (A)
Venus is the brightest object in the sky after the Sun.
Reason (R)
Venus is the second planet from the Sun in our solar system.
Codes:
(a)
(b)
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(d)