Speed of the revolution of the earth is___'
100000 km per hour
10000 km per hour
1000 km per hour
100 km per hour
Correct Answer :
A. 100000 km per hour
Related Questions
The Sun contains over ___of the total mass of the Solar System.
0.825
0.98
0.998
0.02
When the Sun is vertically overhead along the Tropic of Capricorn at mid-day
days and nights are of equal lengths in the Northern Hemisphere
Nights are longer than days in the Southern Hemisphere
Days and nights are of equal lengths at the poles
Night is equal to 24 hours at the North Pole
The permanent tilt of the Earth's axis and the revolution of the Earth in its orbit together cause
Day and night
Varying lengths of day and night at different times of the year
Differences in time between places on different meridians
The deflection of winds
Among the following which planet takes maximum time for one revolution around the Sun?
Earth
Jupiter
Mars
Venus
The axis of Mars la inclined at an angle of
25°
30°
35°
15°
The length of its day and the tilt of its axis are almost identical to those of the Earth. This is true or
Uranus
Neptune
Saturn
Mars
How many degrees north and south are the Tropics?
47 degrees
23.5 degrees
12 degrees
30 degrees
What part of the moon's surface is never visible from the earth?
1.41
1.47
0.59
0.5
Which of the following conditions la the most relevant for the presence of life on Mars?
Atmospheric composition
Thermal conditions
Occurrence of ice caps and frozen water
Occurrence of ozone
Going into the interior of the earth the weight of an object
Increases
Decreases
Remains unchanged
First increases and then decreases
Which of the following planets is called 'blue planet'?
Venus
Earth
Mars
Uranus
An imaginary belt of 12 constellations or group of stars la called
Zodiac
Steller group
Pulsar
Zodiacal light
The most important constituent of the Sun's mass is.
Hydrogen
Helium
Silicon
Iron
1 and 2
2 and 3
3 and 4
1,2 and 4
How many of the following statements are true?
1. Mean Solar Day is greater than Sidereal Day approximately by 4 minutes.
2. Earth's rotational velocity is decreasing.
3. Planets are arranged according to their increasing distance from the sun as follo
3 and 4
1, 3 and 4
1 and 2
1, 2, 3 and 4
The atmospheric� pressure on the surface of Venus is more than__ times the atmospheric pressure of the Earth.
90
80
50
100
A Light Year measures
A unit of velocity
A unit of distance
A unit of pressure
A unit of time
Earth revolves round the Sun In an orbit once In every __.
24 hours
20 hours
365 % days
366 days
Lunar eclipse means
Direction or path of the Moon
The Moon comes between the Sun and the Earth
The Earth comes in between the sun and the Moon and the centres of all the three come on the same straight line
The average angle made by a line drawn from the Moon to the Earth
In which direction la the Tropic oC Capricorn in relation to the Equator?
North
South
East
West
Rapidly rotating stars emitting intense radio waves are called ___.
Pulsars
Quasuars
Neutron stars
All of the above
The word 'satellite' means _____.
wanderer
settlement
light
a smaller companion to anything
Which one of the following stars is nearest to the Earth?
Polaris
Alpha Centauri
Sun
Sirius
Brightest planet of our Solar System is _____.
Venus
Mercury
Uranus
Saturn
What is the distance around the earth at the Equator?
21,000 km
16,800 km
18,600 km
12,500 km
Polar Auroras are called __ in Southern Hemisphere.
Aurora Australis
Quasars
Aurora Borealis
Pulsar
The Jupiter's atmosphere comprises mainly of
Hydrogen and oxygen
Carbondioxide and oxygen
Hydrogen and hydrogen compounds
Nitrogen and helium
Which is the second largest satellite in the Solar System?
Titan
Charon
Ganymede
Europa
A 'black hole' is a body in space which does not allow any radiation to come out. This property is due to its
Very small size
Very large size
Very high density
Very low density
What is the shape of our galaxy 'Milky Way'?
spiral
elliptical
circular
spherical
Sunspots are
undulations on the solar surface
huge magnetic storms on the solar surface
places with adequate sunshine
places of tourist importance