Science Mcqs for Educator
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The most important
stimulant in tea leaves is
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Brucine
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Caffeine
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Phenylalanine
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Theine
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Dolly is the name of
the
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First coined sheep
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First coined monkey
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First test-tube baby
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First human fossil
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Which part of the
camera is analogue to the retina in the human eye?
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Lens
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Film
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Aperture
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Shutter
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When a person enters a
dark room from bright light he is not able to see clearly for a little while
because the
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Eye is unable to
adjust itself immediately
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Retina becomes
insensitive momentarily
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Iris is unable to
dilate the pull immediately
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Distance between the
lens and retina take
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What is the average
adult pulse rate?
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140-150
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115-125
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72-80
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60
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The beautiful color patterns
exhibited by a peacock in its tail feathers are due to
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Selective absorption
of light
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Selective reflection
of light
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Sinterference of light
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Natural color pattern
of feathers
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A lake starts freezing
because of the cold atmosphere. It will first freeze
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All the bottom
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In the middle part
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At the top surface
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Uniformly throughout
the water body
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The sun appears red at
sunrise and sunset while it appears white at noon, because
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Of refraction
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It is cooler at
sunrise and at sunset
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Of diffraction leading
to red end of the spectrum reaching the earth
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Of scattering of light
due to dust particles and air molecules
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An astronaut inside a
spacecraft is in a state of weightlessness. This implies that
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The mass of the
astronaut is reduced to zero
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Gravity inside the spacecraft
ceases to act
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The astronaut is outside
the influence of the earth’s gravitational force
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The astronaut and the
spacecraft are both in a free-falling state
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An iceberg is floating
in sea. How much of its mass will remain above the surface of water?
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One tenth
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One fifth
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One fourth
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One third
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Most of the ozone In
the atmosphere is con-cent rated in the
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Mesosphere
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Troposphere
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Stratosphere
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Ionosphere
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The cow’s milk contains
how much amount of water in terms of percentage?
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60%
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65%
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72%
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80%
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T.V transmission
cannot cover a very large area because
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The strength of T.V
waves is very limited
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Picture cannot be
transmitted clearly after a specific distance
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The shape of the earth
is spherical
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The air is not a good
conductor of light and sound/waves
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The Green House Effect
is caused Buy an ex-cess of
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Carbon dioxide
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Carbon monoxide
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Carbon tetrachloride
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None of above
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Bats can also fly in
dark because they are ca-pable of taking the help of
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Ultraviolet waves
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Ultrasonic waves
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Electromagnetic waves
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Special Titian
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What is stealth
Technology?
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A device which when
attached to an air-craft makes it invisible on the radar
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A coating which
reduces the visibility of an aircraft on a radar
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A technology by which
it is possible for the aircrafts to spy in the enemy air-space
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A technology by using
which paratroopers can be dropped stealthily behind the en-emy columns.
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The rear view mirror
of a motor vehicle is
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Concave
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Plane
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Convex
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Biconcave
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Lead ball fall through
water more slowly than through air because
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The value of ‘g’ is
less in water
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Density of air is less
than that of water
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Of the viscous force
in water
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Of the surface tension
of water
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A Fahrenheit
thermometer indicates a tempera-true of 14 F its corresponding reading on the
Celsius scale will be
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-20 C
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-10 C
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+10 C
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+20 C
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