travelling in opposite direction
of slightly different frequencies
of equal wavelength
of equal amplitude
B. of slightly different frequencies
equal to half its focal length
equal to its focal length
twice its focal length
not related to its focal length
a straight line
an ellipse
a circle
a parabola
increases
decreases
remains the same
first increases then decreases
the water available is hard
it is colder than at sea level
the potatoes become hard
the boiling point of water is lower at that height on account of low atmospheric pressure
radio waves and X-rays
ultraviolet light waves
visible light waves
All the above
he may increase his speed
his weight may be reduced
necessary centripetal force may be available from the horizontal component of the normal reaction due to the track to maintain the curved motion
no frictional force may be produced between the wheels and the axle
an electrophorus
an electroscope
an electromagnet
an ammeter
protons and electrons
alpha particles
gamma rays
All the above
INSAT
Bhaskara
Aryabhatta
All the above
Crown glass
Water
Flint glass
Diamond
Venus
Saturn
Mercury
Earth
transverse
longitudinal
transverse and longitudinal
neither transverse nor longitudinal
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
light energy into electrical energy
electrical energy into light energy
magnetic energy into electrical energy
electrical energy into mechanical energy
Space ship
Lunar module
Radar
Rocket
October 20, 1978
November 14, 1978
January 26, 1979
April 19, 1975
Bangalore
Mumbai
Ahmedabad
New Delhi
attract each other
repel each other
neither attract nor repel
attract or repel depending upon the conditions
8 minutes
4.3 years
12 seconds
24 hours
the nature of the liquid
area of the exposed surface of the liquid
temperature of air and of the liquid
All the above
no charge
positive charge
negative charge
can't be said
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
the same as the direction of the vibrations of the vibrating body
at right angles to the direction of the vibrations of the vibrating body
Both (a) and (b) above
None of the above
an electrophorus
an electroscope
an electromagnet
an ammeter
is proportional to that of the Celsius thermometer
is always greater than that of the Celsius thermometer
is always less than that of the Celsius thermometer
may be greater than or less than or equal to that of the Celsius thermometer
will increase
will decrease
does not change
varies with the increase of depth of the immersion of the iron piece
Rutherford
Neils Bohr
Albert Einstein
JJ Thompson
rough white
rough black
shining white
shining black
Hygrometer
Hypsometer
Hydrometer
Densimeter
Joule
Newton
Joule/Sec
Erg/Sec