Q.1
Which of the following is the second largest source of global energy?
Q.2
For every action, there is an equal and opposite reaction, is Newton's
Q.3
What is the effective resistance (in Ω) of two resistors 20 Ω and 30 Ω connected in parallel?
Q.4
When a number of resistors are connected in series in a circuit, the value of current:
Q.5
Which of these travels in glass with minimum velocity ?
Q.6
Land is considered a resource because it
Q.7
Solar cells work on the principle of
Q.8
Hot springs are heated geothermally by underlying
Q.9
Which of the following is the cleanest source of energy?
Q.10
When light passes from one medium to another, this phenomenon of change in its direction is called ________
Q.11
Which alternative energy source is exhaustible?
Q.12
Stars appear twinkling because of ......... of light.
Q.13
Stars in the sky appear to twinkle due to
Q.14
A piece of wood is held under water. The upthrust on it will be:
Q.15
Which of the following is a renewable source of energy
Q.16
The energy that generates wind comes from what source?
Q.17
A good conductor while carrying current is
Q.18
What is the source of energy for the water cycle?
Q.19
Which of the following is a non renewable source of energy ?
Q.20
Wind and solar energy are examples of
Q.21
The Solar energy produced by
Q.22
Which of the following is a Non Renewable Resource of Energy?
Q.23
An egg sinks in soft water but floats in a concentrated solution of salt because
Q.24
When a ship enters the sea from a river what will be the effect?
Q.25
Solar energy is due to
Q.26
Which resource is both renewable and inexpensive?
Q.27
Sources of geothermal power are
Q.28
Electrostatic precipitator is used to control the pollution of
Q.29
Hydro-electric power is a:
Q.30
The oldest type of energy known to man is
Q.31
Two identical solid pieces, one of gold and other of silver, when immersed completely in water exhibit equal weights. When weighed in air (given that density of gold is greater than that of silver)
Q.32
Which of the following is a renewable resource of energy?
Q.33
The group of solar cells joined together in a definite pattern is called a
Q.34
Energy that is produced commercially from coal is called
Q.35
When a body is immersed in a liquid, the force acting on it is
Q.36
Which of the following uses a Non Renewable Energy Source?
Q.37
The shape of our milky way galaxy is
Q.38
The density of water is 1 g/cc. This is strictly valid at
Q.39
Vegetables are cooked in lesser time by adding a pinch of salt while cooking because
Q.40
Specific gravity is defined as the ratio of
Q.41
The cause for the Tsunami, as deduced by the seismologists, is
Q.42
Which statement best describes an igneous intrusion?
Q.43
Which of the following is not an aerosol?
Q.44
What is the process of conversion of solid state directly to gaseous state called?
Q.45
Solids have definite shapes.This is because
Q.46
When heated from 0 to 100oC volume of a given mass of water will :
Q.47
When a bottle of perfume is opened in one corner of a room the smell spreads soon throughout the room. This is an example of
Q.48
Who measured the velocity of light first ?
Q.49
Light houses are places with powerful lights to :
Q.50
Which is a common first indicator of an approaching thunderstorm?
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