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
C. A-2 B-3 C-1 D-4
0 K
273 K
373 K
100 K
a neutron star
a binary star
a dwarf star
a polar star
find out the specific gravity of liquids
measure the volumes of liquids
test the purity of milk
determine the strength of acid in car batteries
radio waves and X-rays
ultraviolet light waves
visible light waves
All the above
these signals are electromagnetic in nature
these are not electromagnetic in nature
their wavelength is very large
they are not reflected by the ionosphere but pass through it
continue going upwards uninterrupted
reach a particular height and remain floating
burst after reaching some height
reach a particular height and start coming down
Nitrogen
Oxygen
Chlorine
Freon
generally considered as a desert happening
caused by unequal heating of the several layers of the atmosphere above the desert
in which the refracted rays take a curved path resulting in total internal refection
All the above
Evaporation at the surface causes cooling
The heat obsorbed at the surface is passed on to the bottom
Because of impurity in the water
Because of convection currents set up inside water
telescope
spectrometer
microscope
periscope
the same as that of an audible sound
above the audible range
below the audible range
None of the above
nuclear fission
nuclear fusion
chemical combustion
boiling
rectilinear propagation of light
reflection
refraction
total internal reflection
electroplating
electrotyping
electrolysis
distillation
a glass rod with flannel
an abonite rod with flannel
a glass rod with silk
Any of the above
adhesion
cohesion
surface tension
capillarity
same number of protons but different number of neutrons
same number of neutrons but different number of protons
the same total number of protons and neutrons
same number of protons and different number of electrons
warm and moist
cool and dry
warm and dry
cool and moist
lead
zinc
carbon
tin
appears to increase
appears to decrease
does not change at all
first increases then decreases
copper
aluminium
silver
nichrome
Ammeter
Altimeter
Adrinometer
Anemometer
Pascal's law
Bernoulli's law
Archimedes' law
Boyle's law
rough white
rough black
shining white
shining black
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
increases the melting point of ice
decreases the melting point of ice
has no effect on the melting point of ice
increases the volume of the ice
Fusion converts nuclear energy into heat
Fusion demands conditions of extremely high temperature to produce it
Fusion produces large amount of heat
Fusion reactions takes place in the sun
light energy into electrical energy
electrical energy into light energy
magnetic energy into electrical energy
electrical energy into mechanical energy
the retina of the eye moves forward
the retina of the eye moves backward
c).the iris is unable to dilate the pupil immediately to be able to see things
the eye has no power of accommodation
Physics
Chemistry
Biology
Economic