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The instrument that measures and records the relative humidity of air is:
The shape of our milky way galaxy is:
The different colours of different stars are due to the variation of:
The fundamental scientific principle in the operation of battery is:
Instrument used to measure the force and velocity of the wind is:
Which combination of colour the most convenient during day and night time?
Woolen clothes keep the body warm because:
If the length of a simple pendulum is halved then its period of oscillation is:
Equilibrium is a condition that can:
While catching a ball, a player pulls down his hands to lower the:
Geostationary satellite revolves at:
When a barometer reading suddenly recedes, it indicates that climate:
A particle dropped from the top of a tower uniformly falls on ground at a distance which is equal to the height of tower. Which of the following paths will be traversed by the particle ?
Asteroids revolve around the Sun between which of the following two planets?
Smog is a general pollutant where:
The speed of light with the rise in the temperature of the medium:
Clothes keep us warm in winter because they:
In a refrigerator what produces the cooling?
Why are we able to hear short wave broadcasts better than long wave broadcasts?
Electron microscope was invented by:
A passenger standing in a bus is thrown outward when the bus takes a sudden turn. This happens due to:
Which of the following is not true for Geostationary Satellite?
When pressure is increased the melting point of ice:
Longitudinal waves cannot travel through:
Electrostatic precipitator is used to control the pollution of:
When two ice cubes are pressed over each other they unite to form one cube, because of:
Which of the following parts of the sunlight makes the solar cooker hot?
If the velocity-time graph of a particle is represented by y = mt + v, then the particle is moving with:
Which of the following occurred first?
The animal which uses sounds as its ‘eyes’ is:
The sky appears blue because of:
Dynamo is a device for converting:
The working of the quartz crystal in the watch is based on:
Why does a big fire in the open appear to be fanned by strong winds?
Oil rises up the wick in a lamp because:
In the atmosphere ultraviolet rays are absorbed by:
In which of the following cryogenic engines are used?
Who propounded the possibility of placing communications satellites in geosynchronous orbit for the first time?
What was the name of the space shuttle that landed man on the moon?
The energy emitted by the Sun is due to:
Tungsten is used for the manufacture of the filament of an electric bulb, because:
What is the wavelength of visible spectrum?
Who invented Radar?
Who measured the velocity of light first?
When a vehicle passes, TV reception gets distorted. This is because:
Which of the following alloy is used in making magnet?
Where are mesons found?
For a body moving with non-uniform velocity and uniform acceleration:
Lamberts law is related to:
Which of the following laws validates the statement that matter can neither be created nor destroyed?