SAT Physics - The Universe
Exam Duration: 45 Mins Total Questions : 30
The angle of tilt of the axis of rotation of earth is
- (a)
23.5°
- (b)
20°
- (c)
11°
- (d)
18.5°
How many constellations comprise the signs of the Zodiac?
- (a)
5
- (b)
7
- (c)
9
- (d)
12
An exploding star is called
- (a)
Protostar
- (b)
Supernova
- (c)
Sirius
- (d)
Neutron star
The colour of a star depends upon its
- (a)
density
- (b)
distance from the sun
- (c)
surface temperature
- (d)
radius
Brightest planet of the Solar system
- (a)
Mercury
- (b)
Earth
- (c)
Mars
- (d)
Venus
Which is called the red planet?
- (a)
Earth
- (b)
Jupiter
- (c)
Saturn
- (d)
Mars
Time required by the earth to rotate 1° in its axis is
- (a)
2 min
- (b)
4 min
- (c)
8 min
- (d)
5 min
Mean distance between the Sun and Earth is known as
- (a)
one astronomical unit
- (b)
one light
- (c)
one parsic
- (d)
none of these
Indra is the Indian name of
- (a)
Saturn
- (b)
Mars
- (c)
Uranus
- (d)
Neptune
The sun consists of about _______ % of the mass of solar family.
- (a)
85
- (b)
89
- (c)
94
- (d)
99
______ is the smallest planet of our solar system
- (a)
Venus
- (b)
Mars
- (c)
Mercury
- (d)
Earth
_______ is not a Jovian planet.
- (a)
Earth
- (b)
Jupiter
- (c)
Saturn
- (d)
Neptune
Saturn is about _______ times bigger in size compared
- (a)
11
- (b)
13
- (c)
20
- (d)
25
During which period are meteors seen in maximum number?
- (a)
January to March
- (b)
April to June
- (c)
August to November
- (d)
November to February
The stars appearing _______ have lowest surface temperature
- (a)
Red
- (b)
Blue
- (c)
Yellow
- (d)
Yellow
What is the diameter of Milky Way?
- (a)
1000 light year
- (b)
10000 light year
- (c)
100000 light year
- (d)
100000 km
__________ was the first satellite launched by India.
- (a)
Agni
- (b)
EDUSAT
- (c)
Rohini
- (d)
INSAT II
Remote sensing satellite of India visits any location on the earth at the interval of __ days.
- (a)
18
- (b)
19
- (c)
20
- (d)
21
The time taken by light to reach the earth from the sun is
- (a)
200 S
- (b)
300 S
- (c)
400 S
- (d)
500 S
The Milky way Galaxy is the example of a
- (a)
Spiral galaxy
- (b)
elliptical galaxy
- (c)
irregular galaxy
- (d)
circular galaxy
Shooting star is another name
- (a)
comet
- (b)
meteor
- (c)
solar flare
- (d)
nebulae
How many stars can be seen on a clear night with naked eye
- (a)
200
- (b)
3000
- (c)
20000
- (d)
more than 20000
The planet having the largest number of satellite amongst the following is
- (a)
Jupiter
- (b)
Saturn
- (c)
Uranus
- (d)
Mars
Velocity of light in air is
- (a)
3 x 104 km/s
- (b)
3 x 106 km/s
- (c)
3 x 105 km/s
- (d)
3 x 103 km/s
The source of energy of the sun or a star is
- (a)
Chemical reactions
- (b)
Nuclear fusion reactions
- (c)
Thermo-nuclear fusion reactions
- (d)
none of these
Halley's comet appears after every
- (a)
66 years
- (b)
70 years
- (c)
72 years
- (d)
76 years
Surface temperature of the Sun is
- (a)
5800K
- (b)
1300K
- (c)
580K
- (d)
58000K
The tail of a comet points
- (a)
towards the sun
- (b)
away from the sun
- (c)
in arbitrary direction
- (d)
away from the earth
The astronomers have estimated appears that the Univers was formed about ______ years ago
- (a)
10 millions
- (b)
45 millions
- (c)
15 millions
- (d)
50 millions
The blue green planet is
- (a)
Uranus
- (b)
Pluto
- (c)
Saturn
- (d)
Mars
