.Asteroids comets and meteors belong toconstellations
1.stellar system
2.solar system
3.constellations
4.galaxies
Posted Date:-2021-10-15 06:47:54
.The period of rotation of the Sun is
1.34 days
2.25 days
3.25 days at pole and 34 days at the equator
4.34 days at the pole and 25 days at the equator
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A group of bright and faint stars is called
1.constellation
2.galaxy
3.stellar system
4.solar system
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A large group of stars is called agalaxy
1.sign of zodiac
2.constellation
3.galaxy
4.universe
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According to geocentric model of planetary motion
1.earth is stationary
2.the Sun is stationary
3.planets are stationary
4.earth is moving around the Sun
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According to heliocentric theory18.
1.earth is stationary
2.planets are at rest
3.Sun is revolving around the Earth
4.Sun is the centre of solar system
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Approximately the number of times the gravitational force on the surface of Sun compared to that on the Earths surface is
1.82
2.28
3.1040
4.88
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Building blocks of the universe arestars
1.star
2.galaxies
3.constellations
4.planets
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Earth belongs to the galaxy called
1.Andromeda
2.Radio galaxy
3.Milky ways
4.Elliptical galaxy
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Heavenly bodies which shine due to their own energies are called
1.planets
2.galaxies
3.stars
4.meteors
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Hydrogen helium methane and ammonia gases are present in
1.Venus
2.Earth
3.Mars
4.Jupiter
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If the velocity of molecules is more than the escape velocity on a planet then that planet will have
1.no atmosphere
2.atmosphere
3.more mass
4.less mass
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In solar system the plant farthest to the Sun is
1.Mercury
2.Earth
3.Uranus
4.Pluto
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In solar system the plant nearest to the Sun is
1.Mars
2.Mercury
3.Earth
4.Venus
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Keplers third law can he used to find
1.speed of motion of a planet
2.size of a planet
3.distance of a planet
4.mass of a planet
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Light year is a unit ofdistance between the Sun and earth
1.time
2.distance
3.distance between the Sun and earth
4.intensity of light
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Modern astromers have divided the whole sky into
1.77 constellations
2.88 constellations
3.12 signs of zodiac
4.billions of galaxies
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Next to the Sun the star nearest to Earth isPolaris
1.Spica
2.Polaris
3.Alpha centuari
4.Sirius
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One astronomical unit is the distance
1.travelled by light in one year
2.of the Earth from the Sun
3.of Pluto from the Sun
4.of mercury from the Sun
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Parallax method is used to find
1.distance of a planet from the earth
2.temperature of a planet
3.mass of a planet
4.size of a planet
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Polaris is a
1.comet
2.star
3.planet
4.galaxy
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Reflecting power of a heavenly body is albedo
1.atmosphere of a planet
2.absorbing power of a planet
3.escape velocity on a planet
4.reflecting power of a heavenly body
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Solar energy received by planets
1.Mars
2.decreases as the distance of the plant from the Sun increases
3.is zero
4.is same for all planets
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Solar system consists of
1.seven plants
2.sun and earth only
3.sun and stars
4.nine plants
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Surface temperature of a planet can be determined by using
1.Keplers law
2.Parallax method
3.Stefans law
4.Absorption of solar radiation
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Surface temperature of the Sun is found to be about2.
1.580 K
2.5800 K
3.14 million K
4.1 million K
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Taurus is a
1.star
2.galaxy
3.constellation
4.planet
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The albedo of Mercury is
1.6
2.0.06
3.0.85
4.0.6
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The distance 9.46 ? 1012 km is equal to
1.diameter of milky ways
2.distance of the Sun from Earth
3.one light year
4.one astronomical unit
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The galaxy close to Earth is17
1.Milky ways
2.Radio galaxy
3.Andromeda
4.Magnellanic clouds
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The model of solar system according to which the Sun is at rest was first proposed by
1.Venus
2.Hubble
3.Copernicus
4.Newton
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The number of satellites of Neptune is
1.zero
2.one
3.two
4.three
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The number of satellities of Saturn is
1.two
2.five
3.ten
4.twelve
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The planet having a thick atmosphere of carbon-di-oxide is
1.Venus
2.Jupiter
3.Neptune
4.Mercury
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The planet having five satellites is
1.Mars
2.Uranus
3.Pluto
4.Mercury
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The plant having twelve satellite is
1.Jupiter
2.Saturn
3.Mars
4.Venus
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The solar radiation incident on a planet
1.is entirely reflected
2.is partly reflected
3.is completely absorbed
4.does not heat up the surface
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The star nearest to Earth is
1.Sun
2.Dhruva
3.Chitra
4.Alpha centavri
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The Sun is mainly made ofoxygennitrogen
1.hydrogen
2.oxygen
3.carbon dioxide
4.nitrogen
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The surface of a planet is hot due to
1.reflection of solar radiation
2.nuclear fusion
3.cosmic fusion
4.absorption of solar radiation
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The three main constituents of universe aresolar system planets and stars
1.the Sun Earth and stars
2.solar system stars and galaxies
3.solar system planets and stars
4.The Sun stars and galaxies
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Which one of the following does not have satellite
1.Earth
2.Mars
3.Mercury
4.Uranus
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Which one of the following is called an inferior plant3.
1.Pluto
2.Earth
3.Venus
4.Jupiter
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Which one of the following is not a unit of time
1.light year
2.leap year
3.microsecond
4.lunar month
Posted Date:-2021-10-15 06:47:54
Which one of the following is self-luminous
1.Venus
2.Moon
3.Polaris
4.Mars
Posted Date:-2021-10-15 06:47:54