After 26th General Assembly of International Astronomical Union held in 2006 in Prague (Czech Republic), Which planet is known as Dwarf planet?
1.Mars
2.Saturn
3.Pluto
4.None
Asteroids have their orbits between Whic of the following planets??
1.Mars and Jupiter
2.Mercury and Jupiter
3.Neptine and Saturn
4.None
Blue planet is
1.Saturn
2.Mercury
3.Moon of Saturn
4.None
Comets are celestial bodies moving about the solar system in_____ A comet is an icy, small Solar System body that, when passing close to the Sun, warms and begins to release gases, a process called outgassing
1.Elliptical orbits usually accompanied by a long shining tail
2.Elliptical or hyperbolic orbits, usually accompanied by a shining tail
3.Hyperbolic orbit without projecting any tail or head
4.Hyperbolic orbit always accompanied by a shining head
Comets moves around the
1.Earth
2.Mercury
3.Venus
4.None
Consider the following astral bodies: 1. Sirius 2. Venus 3. Mars The correct sequence in increasing order of their brightness is
1.1,2,3
2.3,1,2
3.3,2,1
4.None
Correct statement for Solar system?
1.The predominant element in the composition of Earth is silicon
2.The Earth is the densest of all the planets in our solar system
3.The diameter of the Sun is 190 times that of the Earth
4.The Sun contains 75 percent of the mass of the solar system
Fill in the blank _______ is the dense cloud of gases mainly Helium & Hydrogen, & dust. They occur at primary stages & then from them galaxies are formed. It is not related to our solar system
1.Nebula
2.Comets
3.Small planet
4.None
Fill in the blank _______ was also called the morning star because it could be seen for a few hours before the Sun grew too bright. The planet actually becomes brightest before the Sun rises or just after sunset.
1.Mercury
2.Jupiter
3.Venus
4.Saturn
Fill in the blank: Great Bear is a ________
1.Planet
2.Constellation
3.Sattelitte
4.Star
Fill in the blank: _____ first resolved the band of light into individual stars with his telescope in 1610. Until the early 1920s, most astronomers thought that the Milky Way contained all the stars in the Universe.
1.Newton
2.Galileo Galilei
3.Robert pattinson
4.Martin Schmidt
Fill in the blanks As compared to the orbit of the other given planets, ____ has nearest orbit to Sun
1.Mercury
2.Earth
3.Jupiter
4.Mars
Fill in the blanks Comets revolve around ____ in a highly elliptical orbit.
1.Earth
2.Sun
3.Saturn
4.None
Fill in the blanks: Jupiter revolves or orbits around the Sun once every _____ Earth years, or once every _____ Earth days.
1.11.86, 4330.6
2.13.65, 5754.9
3.15.64, 6741.1
4.None of the above
Fill in the blanks: Nebula is the dense cloud of gases mainly Helium & Hydrogen, & _____
1.CO
2.Carbon di oxide
3.Dust
4.All of the above
Fill in the blanks: Neptune has ____ moons.
1.13
2.12
3.15
4.11
Fill in the blanks: The color of a star mostly indicates a ______ of star and it can also suggest the _____ of star.
1.Temperature , Mass
2.Mass, Age
3.Age , Weight
4.Temperature, Age
Fill in the blanks: The exact time taken by the earth for single rotation on its own axis is ___
1.24 hrs
2.24 hrs 36 sec
3.23 hrs 56 minutes 4.09 sec
4.23 hrs 50 minutes 7.2 sec
Fill in the blanks: The hotter the star, the more blue it is, the cooler the star, the more ___ it is.
1.Black
2.Blue
3.Red
4.None
Fill in the blanks: Venus takes ___ Earth days to rotate on its axis whereas it takes ____ Earth days to revolve round the Sun.
1.243, 224.7
2.234, 816.7
3.349, 927.1
4.361.1, 827.6
Fill in the blanks: _____ is often called the Red Planet because it appears in the sky as an orange-red star.
1.Mercury
2.Mars
3.Jupiter
4.None of the above
Fill in the blanks: ________has thirteen moons.
1.Mercury
2.Jupiter
3.Neptune
4.None
Foucault experiment is proof of which one of the following?
1.Rotation of Earth
2.Revolution of Earth
3.Revolution of Moon
4.Rotation of Moon
Galileo Galilei first resolved the band of light into individual stars with his telescope in
1.1510
2.1610
3.1710
4.1810
Galileo Galilei was the first to see Saturns rings in
1.1510
2.1610
3.1710
4.1810
Halleys comet appears once in a period of
1.27 years
2.76 years
3.92 years
4.38 years
How many of natural satellites earth have??
1.1
2.2
3.3
4.4
If you look down at our planet from outer space, most of what you see is water; 71% of the surface of earth is covered by
1.Desert
2.Ocean
3.Land
4.Grass
In astrophysics, what is the name of hole in outer space which emits stars and energy?
1.Black hole
2.White hole
3.Ozone hole
4.None of the above
In how many parts the shadow of Earth is divided during solar or lunar eclipse?
1.1
2.2
3.3
4.4
In how many parts the shadow of Earth is divided during solar or lunar eclipse?
1.1
2.2
3.3
4.4
Light travels through space at just over 186,000 miles per second. The moon is just under 250,000 miles from Earth, so light from the surface of moon has to travel about _____ to reach us.
1.1.3 seconds
2.1.9 seconds
3.2.3 seconds
4.none
Like all orbiting bodies, comets follow Keplers Laws - the closer they are to the Sun, the _____ they move.
1.Slower
2.Fastest
3.Irregularly
4.None of the above
Mars has how many satellites?
1.1
2.2
3.3
4.4
MESSENGER was a robotic spacecraft sent by NASA for the study of?
1.Titan
2.Moon of earth
3.Mercury
4.Saturn
MESSENGER was a robotic spacecraft sent by NASA. The name is a reference to the messenger deity of the same name from Roman mythology) was a NASA robotic spacecraft that orbited the planet Mercury between 2011 and
1.2014
2.2015
3.2016
4.2018
Only one side of the Moon is visible from Earth because
1.Moon cannot change its position
2.The period of rotation of the Moon is not equal to the period of rotation of the Earth
3.Moon and the Earth have gravitational force
4.Moon rotates on its axis at the same rate that the Moon orbits the Earth
Our solar system is so big it is almost impossible to imagine its size if you use ordinary units like feet or miles. The distance from Earth to the Sun is
1.87 million miles
2.93 million miles
3.87 million miles
4.28 million miles
Parsec is the unit of measurement of
1.Temperature of star
2.Orbital velocity of star
3.Density of stars
4.Astronomical distance
Radiant energy is the energy of electromagnetic waves. It is a form of energy that can travel through space. For example, we receive the heat from the sun, which is located very far from the earth via radiation. The suns heat is not transmitted through any solid medium, but through a vacuum. They are
1.Short waves
2.Long waves
3.Particles
4.All of the above
Radiant energy is the energy of electromagnetic waves. The radiant energy of the sun is transmitted in the form of
1.Particles
2.Short waves
3.Long waves
4.A and C
Rotational axis of which among the following planet is highly tilted?
1.Earth
2.Mercury
3.Uranus
4.Venus
Rotational axis of which planet is highly tilted?
1.Uranus
2.Earth
3.Mars
4.Jupiter
Stars emit colors of many different wavelengths, but the wavelength of light where a stars emission is concentrated is related to the
1.Temperature of star
2.Size of star
3.Mass of star
4.All of the above
The altitudes of heavenly bodies appear to be greater than they actually are. This is due to
1.Motions of the earth
2.Vertical motion of these heavenly bodies
3.Atmospheric refraction
4.All of the above
The asteroid belt is the circumstellar disc in the Solar System located roughly between the orbits of the planets
1.Mars and Mercury
2.Mars and earth
3.Mars and Jupiter
4.Mars and venus
The atmosphere of the sun is composed of several layers, These layers named as
1.Chromosphere
2.Photosphere
3.Corona
4.All of the above
The atmosphere of the sun is composed of several layers.The outermost layer of Sun is called as
1.Photosphere
2.Convection zone
3.Corona
4.Chromosphere
The brightest star in the sky out side the solar system is Sirius, also known as the
1.Fox star
2.Lion star
3.Cat star
4.Dog star
The correct sequence of planets in the ascending order of their equatorial diameter is
1.Mercury , Mars, Earth, Uranus
2.Mars, Earth, Uranus, Mercury
3.Earth, Mars, Mercury, Uranus
4.None of the above
The correct sequence of the following planets in terms of gravity, in the ascending order is
1.Saturn, Neptune, Uranus, Earth
2.Neptune, Uranus, Saturn, Earth
3.Earth, Saturn, Neptune, Uranus
4.None of the above
The darkest part of the shadow during eclipse is which of the following?
1.Black hole
2.Halo
3.Umbra
4.None
The darkest part of the shadow during eclipse is which of the following?
1.Black hole
2.Halo
3.Umbra
4.None
The Diameter of Sea of Tranquility (Mare Tranquillitatis) is
1.498 Km
2.873 Km
3.1299 Km
4.1499 Km
The diameter of Ocean of Storms (Oceanus Procellarum) is
1.2568 Km
2.3927 Km
3.8287 Km
4.3788 km
The diameter of Sea of Fecundity is
1.3220 km
2.3140 km
3.2197 km
4.909 km
The Ocean of Storms (Oceanus Procellarum) are found on
1.Earth
2.Venus
3.Jupiter
4.Moon of earth
The only planet whose period of rotation is longer than the period of revolution around the Sun?
1.Saturn
2.Mercury
3.Mars
4.None of the above
The orbits of planets around the Sun, or of satellites around the Earth, can be
1.Circular and hyperbolic
2.Circular and elliptic
3.Parabolic and hyperbolic
4.None of the above
The period of one revolution of sun around the centre of galaxy is called
1.galactic year
2.Cosmic year
3.Both A and B
4.None
The period of one revolution of sun around the centre of galaxy is called
1.galactic year
2.Cosmic year
3.Both A and B
4.None
The Planet amongst the following (other than Saturn), that shows a faint ring is
1.Jupiter
2.Mars
3.Mercury
4.Pluto
The planet Mercury is difficult to be observed most of the time because
1.It goes too far away from the Earth
2.It gets hidden behind Venus
3.It being too close to the Sun, gets hidden by the glare of the Sun
4.None
The planet that is nearly comparable to Earth as regards its size and mass is
1.Pluto
2.Mercury
3.Venus
4.All
The planets are kept in motion in their respective orbits by
1.Their great size and spherical shape
2.Gravitation and centrifugal force
3.The rotation and density
4.None
The Saturn rings were discovered by which among the following person?
1.Newton
2.Galileo
3.Thanos
4.None
The scientist which had proven that every planet has an elongated path was?
1.Kepler
2.Galileo
3.Newton
4.None of the above
The Sea of Fecundity are found on
1.Earth
2.Moon
3.Venus
4.Jupiter
The Sea of Tranquility (Mare Tranquillitatis) are found on
1.Venus
2.Jupiter
3.Mars
4.None of the above
The sky appears blue because the sunlight is scattered by the gas molecules in the atmosphere - a phenomenon known as Rayleigh scattering - named after the discoverer - a British physicist who also discovered Argon - Lord Rayleigh (1842-1919). So, if there was no atmosphere, the sky would appear
1.Black
2.Blue
3.Pink
4.None
The Srnith-tuttle comet will crash with Earth in
1.2126 AD
2.2106 AD
3.2136 AD
4.None
The sunspots cause
1.Magnetic storms on the surface of the sun
2.Aurora borealis and aurora australis
3.Polar auroras
4.All of the above
There are _____ sides to the moon that are visible to us on earth
1.2
2.3
3.4
4.5
To a space traveller on moon, the lunar sky during day time appears like a
1.Blue
2.White
3.Sky blue
4.Black
Venus is the planet which takes more time to complete one rotation than its revolution. It takes 243 earth days to complete 1 rotation and ____ earth days to complete one revolution.
1.224.7
2.229.8
3.243
4.None
Venus, which can be seen with the unaided eye from Earth, is the brightest planet in our Solar System. Venus was given the nickname
1.Evening star
2.Morning star
3.Both A and B
4.None
Watery Planet is also known as the
1.Jupiter
2.Mars
3.Pluto
4.Earth
Which among the following is indicated by the colour of a star?
1.Temperature
2.Weight
3.Size
4.None
Which among the following is the brightest planet of the solar system? which can be seen with the unaided eye from Earth, is the brightest planet in our Solar System.
1.Mercury
2.Jupiter
3.Venus
4.None
Which among the following is the fastest spinning planet in our Solar System rotating on average once in just under 10 hours. That is very fast especially considering how large it is
1.Venus
2.Mercury
3.Mars
4.Jupiter
Which among the following is the nearest planet to Sun?
1.Mercury
2.Mars
3.Jupiter
4.Earth
Which among the following is the nearest planet to Sun?
1.Mercury
2.Mars
3.Jupiter
4.Earth
Which among the following planet is considered as dwarf planet of the solar system? This is called so because it has not cleared its neighbourhood around its orbit.
1.Saturn
2.Pluto
3.Mars
4.Mercury
Which among the following planets lie between Mars and Uranus? according to their distances from the sun??
1.Earth and Saturn
2.Jupiter and Saturn
3.Jupiter and Earth
4.None
Which among the following stars which appear single to the naked eye but are double stars when observed by a telescope, are
1.Binaries
2.Cosmic
3.Quasars
4.None
Which is the hottest planet in the solar system? Although It is not the planet closest to the sun, its dense atmosphere traps heat in a runaway version of the greenhouse effect that warms Earth
1.Venus
2.Mars
3.Jupiter
4.None
Which of the following celestial bodies bear, The Sea of Tranquility and The Ocean of Storms ?
1.Earth
2.Venus
3.Moon of earth
4.Moon of saturn
Which of the following is a dwarf planet in the solar system and is the largest object found in orbit around the Sun since the discovery of Neptune and its moon Triton in 1846
1.Eris
2.Hydra
3.Neptune
4.None
Which of the following is correct definition for blackhole??
1.Star with very low surface temperature
2.Pulsating star
3.Contracted star with intense gravitational pull
4.More than one option is correct
Which of the following is the brightest planet of our solar system and near to our planet?
1.Mercury
2.Venus
3.Saturn
4.Pluto
Which of the following is the largest of the inner planets?
1.Mercury
2.Jupiter
3.Earth
4.Mars
Which of the following Planet comes close to the size of Earth ?
1.Saturn
2.Venus
3.Mercury
4.Neptune
Which of the following planet has the largest number of satellites?
1.Jupiter
2.Mars
3.Venus
4.Earth
Which of the following Planets have no natural satellites ?
1.Mercury
2.Venus
3.Both A and B
4.None
Which of the following statements is/are correct with regard to Milky Way? 1. It is a spiral galaxy. 2. The solar system resides in one of its spiral arms. Select the correct answer using the codes given below
1.1 only
2.2 only
3.Both 1 and 2
4.None of the above
Which of the planet is nearest to the earth and its position is in the middle of the sun and earth
1.Venus
2.Jupiter
3.Mercury
4.None
Which one of the following planets takes the same number of days for rotation and revolution?
1.Earth
2.Mercury
3.Jupiter
4.Venus
Which side of the moon faces the earth at all times and contains four of the five largest seas/oceans on the moon.
1.Eastern far side
2.Western far side
3.Near side of the moon
4.None of the above
Who among the following founded the word Geography?
1.Hicatus
2.Ptolemy
3.Eratosthenes
4.None of the above
Who among the following holds the record for most natural satellites with 79?
1.Mars
2.Saturn
3.Jupiter
4.None of the above