Tag: our solar system

Questions Related to our solar system

What is the orbital period of halley's comet?

evs our solar system asteroids, comets, and meteors and meteorites other objects in solar system asteroids, comets and meteors

  1. $66$ years

  2. $76$ years

  3. $86$ years

  4. $96$ years

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Correct Option: B
Explanation:

Orbital period of Halley's comet is $76$ years.

Between which two planets, asteroid belt can be found?

evs our solar system asteroids, comets, and meteors and meteorites other objects in solar system asteroids, comets and meteors

  1. Venus and Earth

  2. Mars and Jupiter

  3. Mars and Earth

  4. Saturn and Venus

  5. None of these

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Correct Option: B

Why tail of comets is formed ,when it comes closer to sun ?

evs our solar system asteroids, comets, and meteors and meteorites other objects in solar system asteroids, comets and meteors

  1. Ice presents in the comets gets vapourised

  2. When is comes closer to sun ,vapour converts in to ice

  3. Dust particle in the comets gets heated

  4. Water present in comets gets cooled

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Correct Option: A
Explanation:

The tail of comets so formed, When comets come closer to the sun, because the sun's heat vaporizes some of the comets' material, releasing dust particles that were trapped in the ice.

The correct option is A.

Which is the first and biggest asteroid discovered? 

evs our solar system asteroids, comets, and meteors and meteorites other objects in solar system asteroids, comets and meteors

  1. Vesta

  2. Titan

  3. Ceres

  4. Charon

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Correct Option: C
Explanation:

The first and largest, Ceres, was discovered Jan. 1, 1801, by the Italian astronomer Father Piazzi (1746–1826).

Shooting star is another name for

evs our solar system asteroids, comets, and meteors and meteorites other objects in solar system asteroids, comets and meteors

  1. comet

  2. meteor

  3. nubulae

  4. solar flare

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Correct Option: B
Explanation:

Ans: Meteor

The largest asteroid known to a man is _________.

evs our solar system asteroids, comets, and meteors and meteorites other objects in solar system asteroids, comets and meteors

  1. Vesta

  2. Ceres

  3. Chiron

  4. Trozan

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Correct Option: B

The Hallye's comet was sighted last in 1986. It will be seen again in the year ________.

evs our solar system asteroids, comets, and meteors and meteorites other objects in solar system asteroids, comets and meteors

  1. $2064$

  2. $2060$

  3. $2052$

  4. $2062$

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Correct Option: D

The heavenly body which revolves around a planet is called a ______________.

evs our solar system asteroids, comets, and meteors and meteorites other objects in solar system asteroids, comets and meteors

  1. comet

  2. star

  3. satellite

  4. nebulae

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Correct Option: C
Explanation:

Ans: Satellite

The meteors seldom reach the earth because of :

evs our solar system asteroids, comets, and meteors and meteorites other objects in solar system asteroids, comets and meteors

  1. freezing caused when they pass through the atmosphere

  2. vapourization caused when they pass through the atmosphere

  3. greater force of attraction towards sun

  4. greater force of attraction towards moon

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Correct Option: B
Explanation:

Meteors seldom reach earth because of vapourization caused when they pass the atmosphere.

Ans:  vapourization caused when they pass the atmosphere.

The tail of a comet is directed away from the sun because.

evs our solar system asteroids, comets, and meteors and meteorites other objects in solar system asteroids, comets and meteors

  1. The radiation emitted by the sun exerts a radial pressure on the comet throwing its tail away from the sun

  2. As the comet rotates, the lighter mass of the comet is attracted by some star situated in the direction of its tail

  3. As the comet rotates around the sun, the lighter mass of the comet is pushed away due to the centrifugal force alone

  4. The tail of the comet always exists in the same orientation

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Correct Option: A