Objective Part of 2011
1. The planet of the solar system which has maximum numbers of Moon is:
a) Jupiter
b) Venus
c) Saturn
d) Uranus
e) None of these
Mercury and Venus-0.
Earth-1.
Mars-2.
Jupiter-63.
Saturn-60.
Uranus-27.
Neptune-13.
1.Space Today Online - Moons of the Solar System
2.
How Many Moons are in the Solar System
3.
Which Planet Has Maximum Number Of Moons In Solar System | Information of the world
2. Sun is a:
a) Planet
b) Comet
c) Satellite
d) Aurora
e) None of these
sun is a star coz planet reflects light and they have no IONS and gases inside them and it is infact not a satellite coz staellite revolve around planets or star.sun is not revolving around someting and aurora is natural display of light in sky around latitude
3. the age of the solar system is
a)
4.5 billion years
b) 5.5 billion years
c) 6.5 billion years
d) 7.5 billion years
e) None of these
WMAP- Age of the Universe
4. A unit of length equal to the average distance between the earth and sun is called
a) Light year
b)
Astronomical unit
c) Parsec
d) Parallax
e) None of these
Astronomical unit - Wikipedia, the free encyclopedia
5. An eclipse of the sun occurs when
a)
The moon is between the sun and the earth
b) The sun is between the earth and the moon
c) The earth is between the sun and the moon
d) The earth casts its shadow on the moon
e) None of these
Solar eclipse - Wikipedia, the free encyclopedia
6. The ozone layer protects the earth from rays sent by the sun:
a)
Ultraviolet rays
b) Infrared rays
c) Gamma rays
d) radioactive rays
e) None of these
These cause skin cancer and eye disease
7. The ozone layer is present about 30miles (50km) in atmosphere above earth. The stratum (layer) of atmosphere in which ozone layer lies is called as:
a) Exosphere
b) Mesosphere
c) Stratosphere
d) ionosphere
e) Troposphere
The Earth's Atmosphere
8. Which rocks are formed by the alteration of pre-existing rocks by great heat or pressure
a) Igneous rocks
b) Sedimentary rocks
c)
Metamorphic rocks
d) Acid rocks
e) Basic rocks
Igneous rocks are formed by lave or magma and these igneous formed sedimentary and in extreme pressure and temp these turned into metamorphic(is pe me ne tick gakat ker diya tha but afsos aaata tha aur paper me ehsas hva jald jald tick nae karna chahey)
9. The most abundant natural Iron oxides are
a) Magnetite and Pyrite
b) Magnetite and Bauxite
c) Hematite and Pyrite
d) Hematite and Magnetite
e) Hematite and Bauxite
i do not know but i tick on "c" mera khyala he ya "a"
10.The most abundant elements in sea water are
a) Sodium and Potassium
b) Sodium and Calcium
c)
Sodium and Chlorine---it is called salt .and sea me salt bht zaida paya jta he
d) Chlorine and Iodine
e) Magnesium and Sulphur
11. An electric current can produce
a) Chemical effect
b) Magnetic effect
c) Heating effect
d)
All of these three
e) None of these
-these all are forms - converted in to one form or of enegy or other .energy can be converted in to other forms of energy
12. The unit of home electricity energy consumption is:
a) Watt hour
b
) Kilowatt hour
c) Joule hour
d) Kilojoule hour
e) None of these
13. The magnet always points in the same direction, if move freely i.e. towards north and south poles, because of:
a) Gravitational field
b) A lot of metals deposits on north and south poles
c) Due to attraction of north pole and repulsion of Western pole
d)
Earth is a huge magnet
e) None of these
earth be north-south wise direction me rehty he and it is a magnet .so all magnet llies in its direction
14. When sound is reflected from floor, ceiling or a wall , it mixes with the original sound and change its complexion, it is called as
a) Sound
b) Echo
c)
Reverberation
d) noise
e) None of these
15. the speed of sound in dry air at 20 C is about
a) 130 meters per second
b) 230 meters per second
c)
330 meters per second
( i think so)
d) 430 meters per second
e) None of these
17. The time light takes from Sun to reach Earth is:
a) 8 minutes
b) 25 minutes
c) 45 minutes
d) 60 minutes
e) None of these
18. Light from Sun travels a distance before it reaches Earth:
a) 50 Million Km
b) 100 Million Km
c) 150 Million Km
d) 200 Million Km
e) None of these
19. the most suitable thermometer for measuring the boiling point of water is:
a) Mercury thermometer
b) Alcohol thermometer
c) Bimetallic thermometer
d) Liquid crystal thermometer
e) None of these
as it does not adhere to the wall of container
20. The density of water is greatest at:
a) 32°C
b) 0°C
c) 4°C
d) 100°C
e) None of these
21.Which one of the following statements is true:
a) Gases do not conduct heat
b) The best conductors are non-metals
c) Conduction currents occur only in liquids
d) A vacuum can not conduct heat
e) None of the statements is true
22. Ice can be changed to water by:
a) Adding more water molecules
b)
Changing the motion of the water molecules
c) Rearranging the atoms in water molecules
d) Destroying the atoms in water molecules
e) None of these
23. The building blocks of elements are called:
a)
Atoms
b) Molecules
c) Compounds
d) Isotopes
e) None of these
24. Boiling of an egg is a change which is:
a) Physical
b) Chemical
c) Physiological
d) Morphological
e) None of these
25. The temperature of liquid nitrogen is:
a) -32°C
b) -80°C
c) -100°C
d) -196°C--think so
e) None of these
26. Which one of the following is an alkali?
a) water
b) vinegar
c) lemon juice
d
) slaked lime
e) None of these
27. If an alkali is slowly added to an acidic solution, the pH of the acidic solution will:
a) Increase
b) Decrease
c) Increase to 7 and then decrease
d) Decrease to 7 and then increase
e) Will remain same
28. The usual raw material for ceramics, generally found beneath the top soil is?
a) Sand
b) Slit
c) Clay
d) Plaster of Paris
e) Melamine
i will solved rest of it later