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
A. decreasing the radius of the capillary tube
the sea contains a large amount of other salts besides sodium chloride
the density of the person is less than the density of the Dead Sea water
of the surface tension due to salt water in the Dead Sea
of difference in mass
mercury
distilled water
alcohol
does not use any liquid
October 20, 1978
November 14, 1978
January 26, 1979
April 19, 1975
Rutherford
Bohr
Henri Bacquerel
Marie Curie
taking photos of various objects
recording and reproducing three dimensional images
tracing out planets and stars in the sky
transmitting light waves
the speed with which it escapes cools it down
of the higher temperature of the surroundings
of sudden expansion causing loss of internal energy
there is no real fall in temperature
increases
decreases
neither increases nor decreases
first increases then decreases
Voltaic cell
Leclanche cell
Dry cell
An accumulator
as soon as he hears the report of the gun
the moment he sees the flash
either (a) or (b) since that makes no difference
None of the above
the ice that deposits on the freezer
the evaporation of a volatile liquid
None of the above
Both (a) and (b)
there is more friction on ice than on concrete surface
ice is soft and spongy while concrete is hard
the friction between ice and the feet is less than that between the concrete and the feet
None of them
Parabolic
Convex
Concave
Plain
it is practically inexhaustible
it is the cheapest form of energy
it does not cause pollution
All of the above
Cosmic rays
Infrared rays
All radiations of light
Ultra violet rays coming from the sun
able to refract the sound
good absorbers of sound
good reflectors of sound
All the above
increasing the length of the coiled wire
increasing current supply
increasing the size of the iron core
All the above
an ammeter
a rheostat
a voltmeter
a voltameter
increase
decrease
remain the same
None of the above
Joule
Newton
Joule/Sec
Erg/Sec
the marching in steps will involve a big strain on them
the resonant vibrations caused by their marching can damage the bridge increasing the amplitude to dangerous proportions
the marching may obstruct other traffic
rumblings of their marching may disturb the surroundings
to absorb unwanted neutrons
to slow down the fast neutrons to secure more effective hits on other nuclei
to decrease the number of fissile nuclei
to increase the number of fissile nuclei
Platinum
Tungsten
Nichrome
Copper
the temperature is low
there is no air
the pressure is low
All the above
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 heat content of A is greater than that of B
the temperature of A is greater than that of B
the specific heat of A is greater than that of B
the specific heat of B is greater than that of A
air
glass
vacuum
water
the ice that deposits on the freezer
the evaporation of a volatile liquid
None of the above
Both (a) and (b)
resistor
thermocouple
light bulb
neon tube
greater
less
the same
None of these
elliptical
a straight line
a parabola
a vertical line