HJ Bhabha
SS Bhatnagar
V Sarabhai
CV Raman
C. V Sarabhai
Jupiter
Mercury
Venus
Sirius
replace the fuse by a thin wire
replace the fuse by a thick copper wire
replace the fuse by a fuse wire of proper rating
replace the fuse by nichrome wire
can focus very rapidly as pictures change
is quicker than the brain
can see two images separated only if the interval' between seeing them is more than' one-tenth of a second
can shut out some of the light
surface tension
capillarity
viscosity
diffusion
linear motion
vibratory motion
rotational motion
None of the above
the temperature is low
there is no air
the pressure is low
All the above
ACBD
ABCD
CABD
BACD
one
two
three
infinite
a microphone
a headphone
a phonograph
an amplifier
will increase
will decrease
does not change
varies with the increase of depth of the immersion of the iron piece
Cosmic rays
Infrared rays
All radiations of light
Ultra violet rays coming from the sun
conduction
convection
radiation
absorption
are electromagnetic waves
can easily pass through vacuum
are always transverse waves
require a material medium for propagation
velocity
wavelength
frequency
Both (a) and (b) above
Joule
Newton
Joule/Sec
Erg/Sec
cohesive forces between the mercury molecules are greater than adhesive forces between mercury and glass molecules
the adhesive forces between mercury and glass molecules are greater than the cohesive forces
both the cohesive and adhesive forces are equal
None of the above
linear motion
vibratory motion
rotational motion
None of the above
electroplating
electrotyping
electrolysis
distillation
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
its atmosphere
its distance from the sun
its rotation
All the above
doppler effect
beats
resonance
echo
Nebulae
Quasars
Meteors
Comets
inertia
adhesion
cohesion
friction
speed of sound is greater in steel than in air
speed of sound is greater in air than in steel
part of sound waves is reflected between rail tracks
the boy's ears are at a different distance from the source
Tin
Lead
Nickel
An alloy of tin and lead
neutrons
electrons
phonons
photons
the ampere
the volt
the ohm
the coulomb
proton
antiproton
positron
neutron
outward stream of protons and electrons on the surface of the sun during solar flares and sun-spot activity
plasma
ionized gas
All of these
they can see very dearly only in darkness
they produce ultrasonic waves which guide them
their eyes are sensitive to darkness
their eye holes expand in darkness