the floor and carpet are at different temperatures
the stone conveys the heat away from the feet more rapidly than the carpet
the carpet is a better conductor of heat than the stone
the human body maintains a constant temperature
B. the stone conveys the heat away from the feet more rapidly than the carpet
Sirius
Vega
Rigel
Proxima Centauri
Sir Isaac Newton
Columbus
Archimedes
Thomas Alva Edison
proton
neutron
electron
positron
Thumba
Delhi
Mumbai
Sriharikota
Volts
Amperes
ohms
coulombs
Physics
Chemistry
Biology
Economic
Pascal's law
Principle of Archimedes
Boyle's law
Hooke's law
the Sun
the Moon
the Venus
the Mars
is found by measuring the slanting height of the mercury column
is given by the vertical height
cannot be measured with it
can be measured by both the methods described above
the reflection of sound waves
the refraction of sound waves
the interference of sound waves
reverberation of sound waves
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
travelling in opposite direction
of slightly different frequencies
of equal wavelength
of equal amplitude
increase
decrease
remain the same
first decrease and then increase
U-234
U-235
U-238
Both (b) and (c)
the ampere
the volt
the ohm
the coulomb
reduction of seating capacity in the hall
increase of sound intensity in the hall
lining the walls, with leather panels put on over a layer of sound absorbent glass fibre
by opening the doors and windows of concert hall
short sight
long sight
astigmatism
presbyopia
travelling in opposite direction
of slightly different frequencies
of equal wavelength
of equal amplitude
212°
32°
-40°
0°
turbulence caused by the wind
buoyancy of air
unequal pressures acting on it
sudden change in the direction of the wind
Parabolic
Convex
Concave
Plain
18 km/sec
11.2 km/ sec
21 km/ sec
35 km/ sec
insulators
semiconductors
superconductors
condenser
increases to a great extent
increases slightly
decreases slightly
decreases rapidly
alternating current of very high frequency
alternating current of very high voltage
a very large direct current
a high voltage direct current
white paint is economical
it does not fade off
it does not crack with higher temperature
white coating is a bad conductor of heat and reflects heat rays that fall on it, thus keeping the inside cool
Rutherford
Bohr
Henri Bacquerel
Marie Curie
Marconi
Baird
John Bardeen, Walter H. Brattain and William Shockley
Edison
the resistance
the square of the current flowing through it
the time the current flows
All the above
Neptune
Uranus
Jupiter
Saturn