Tag: our solar system

Quizzes (7) Questions (52)

Questions Related to our solar system

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

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

  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
Reveal answer Fill a bubble to check yourself
A Correct answer
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.

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

The meteors seldom reach the earth because of :

  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
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

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

Ans:  vapourization caused when they pass the atmosphere.

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

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

  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
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

As a comet approaches the sun, solar radiation pressure and the solar wind push the ionized gases and dust particles away from the sun, creating the characteristic tail.