there is very little friction between the ice and feet pressing it
ice is soft when compared to concrete
there is more friction between the ice and feet
None of the above
A. there is very little friction between the ice and feet pressing it
greater than the weight of the man
less than the weight of the man
same as the weight of the man
zero
surface tension
capillarity
viscosity
diffusion
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
the path of a star which is nearest to the earth
a galaxy which includes the sun
a star that is nearest to the earth
None of these
cannot be attained experimentally
can be attained
is impossible
Does not exist at all
Sun
Jupiter
Mercury
Earth
power
velocity
energy widely used in nuclear physics
number of electrons
there is no change in volume
there is no change in temperature
heat is given out
there is no change of state
is more than at sea level
is equal to that sea level
is less than at sea level
depends on the surrounding temperature
chemical energy into heat energy
mechanical energy into heat energy
protons into neutrons
mass into energy according to Einstein's equation
air
glass
vacuum
water
increases
decreases
remains the same
first increases then decreases
Proxima Centauri
Sirius
Aldebaran
Vega
10-10 cm
10-12 cm
10-13 cm
10-16 cm
alternating current of very high frequency
alternating current of very high voltage
a very large direct current
a high voltage direct current
less than
greater than
equal to
greater than or equal to
it has no population
it is quite far off
its surface is full of rocks
its gravity is not sufficient for any atmosphere to hold on to it
rubber
plastic
aluminium
wood
Rutherford
Bohr
Henri Bacquerel
Marie Curie
electric current - ampere
resistance - Ohm
electric power - volt
electric charge Coulomb
cannot be attained experimentally
can be attained
is impossible
Does not exist at all
of the same size as the object
at the same distance behind the mirror as the object is in front of it
virtual and laterally inverted
All the above
the forces of cohesion of the molecules within are very much less in them
the forces of cohesion are very large
the forces of adhesion are large
the forces of adhesion are less
Earth and Mars
Venus and Earth
Mars and Jupiter
Moon and Mars
a parabola
a horizontal straight line
a vertical straight line
a circle
Space ship
Lunar module
Radar
Rocket
a horizontal position
a nearly vertical position with its South Pole downwards
a nearly vertical position with its North Pole downwards
a slanting position
protects the article from atmospheric corrosion
gives it a more attractive appearance
Both (a) and (b) above
None of the above
about 75% of hydrogen
22% helium
traces of most other elements including oxygen, neon, carbon and nitrogen
All the above
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