angle of inclination of the earth
changes in radio-active minerals in it
period taken by Sun's light to reach the earth
artificial satellites revolving round the earth
B. changes in radio-active minerals in it
attract each other
repel each other
neither attract nor repel
attract or repel depending upon the conditions
light travels very much faster than sound
sound travels faster than light
lightning occurs nearer than thunder
both travel at the same speed
first
second
third
fourth
18 km/sec
11.2 km/ sec
21 km/ sec
35 km/ sec
there is no change in volume
there is no change in temperature
heat is given out
there is no change of state
Liquid ammonia
Carbon tetrafluoride
Dichloro-difluoro-methane
Sulphur dioxide
transmutation
fission
fusion
radioactivity
it stops due to malfunctioning
it starts emitting dangerous radioactive radiations
it is shut down to avoid explosion
it is ready to produce controlled energy
diffusion
effusion
vaporisation
sublimation
the electrical attraction between the negatively charged electron and the positively charged porton
the high speed of the electron
the low speed of the electron
gravity
A. Anemometer | 1. Measurement of power |
B. Tachometer | 2. Wind speed |
C. Dynamometer | 3. Revolutions per minute |
D. Barometer | 4. Atmospheric pressure |
* | 5. Current from a dynamo |
A-1 B-3 C-5 D-4
A-2 B-1 C-3 D-4
A-2 B-3 C-1 D-4
A-1 B-3 C-5 D-2
Giant stars
White Dwarf stars
Neutron stars
Super-giant stars
protons
electrons
neutrons
positrons
it is practically inexhaustible
it is the cheapest form of energy
it does not cause pollution
All of the above
shifted upwards
shifted downwards
shifted neither upward nor downward
shifted upward or downward depending on the density of the liquid
the ringing is not loud enough
the glass of the bell jar absorbs the sound waves
the bell jar is too small
there is no air or -any other gas in the bell jar
brown for earth, yellow for live, light blue for neutral
green for earth, yellow for live, brown for neutral
yellow for earth, green for live, brown for neutral
brown or red for live, light blue or black for neutral and green or yellow for earth
glass allows the heat radiations of shorter wavelengths from the sun to pass through
the plants absorb them - these shorter wavelengths - and reradiate them in the form of longer wavelengths
the longer wavelengths cannot penetrate through the glass walls
All the above
increases
decreases
remains unchanged
first decreases then increases
insulators
semiconductors
superconductors
condenser
increases
decreases
remains unchanged
first decreases then increases
12N
2N
10N
6N
decreasing the radius of the capillary tube
increasing the radius of the capillary tube
increasing the height of water in the vessel
None of these
about 75% of hydrogen
22% helium
traces of most other elements including oxygen, neon, carbon and nitrogen
All the above
convection
radiation
conduction
All the three
at the lower elevation than the bird
at a higher elevation than the bird
in the same direction as the bird
vertically upwards
a fluid to transmit the braking force
the force applied by the driver
hydrogen gas and not any liquid
a vacuum brake
It will go down
It will come up
It will remain at the same level
First it will go down and it will come up
a reflecting elliptical portion
a reflecting spherical surface
a parabolic reflecting surface
a flat reflecting surface
the ampere
the volt
the ohm
the coulomb