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Physics General Science Test Medium Mode MCQs With Answers
Question # 1
The direction of velocity is along the direction of
Choose an answer
distance
displacement
acceleration
all of them
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Question # 2
Bernoulli's equation is important in the field of
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Electrical circuit
Magnetism
Photoelectric effect
Flow of fluids
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Question # 3
When the total displacement is divided by total time taken, we get:
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Velocity
Average speed
Average velocity
None of these
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Question # 4
Resistor is a device which convert electric energy to
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Heat energy
Chemical energy
Elastic energy
All of the above
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Question # 5
The size of the image is maximum when its distance from the magnifying glass is:
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0.10 m
0.15 m
0.20 m
0.25 m
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Question # 6
Silicon can be obtained from
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Lead
Uranium
An isotope of oxygen
Sand
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Question # 7
The body oscillates due to ______ accelerates and overshoots the rest position due to _______
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Applied force, Inertia
Restoring force, Friction
Frictional force, Inertia
Restoring force, Inertia
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Question # 8
If a gymnast sitting on a rotating stool with his arms outstretched, brings his arms towards the chest, then its angular velocity will
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Increase
Decrease
Remain constant
None of these
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Question # 9
The electric field will be uniform
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Near a positive point charge
Near a negative point charge
Between two oppositely charged parallel metal plates
None of above
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Question # 10
Instead of moving the coil towards a magnet, the magnet is moved towards the coil with the same speed. The galvanometer shows current
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Of same magnitude in the same direction
Of different magnitude in the same direction
Of same magnitude but in opposite direction
Of different magnitude in the opposite direction
None of these
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Question # 11
According to the de-Brogile relation, an object of large mass and ordinary speed has
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very small wavelength
very large wavelength
very small frequency
all of these
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Question # 12
Viscosity is the property by virtue of which a liquid
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Becomes spherical in shape
Occupies minimum surface area
Oppose relative motion between layers
Tends to regain its deformed position
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Question # 13
Shear modulus for steel is
Choose an answer
20
84
95
202
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Question # 14
Spherical aberration can be reduced by using
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Convex lens
All the portions of the lens
Central portion of the lens
Upper portion of the lens
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Question # 15
The higher the satellite, the slower will the required speed and will complete one revolution in time
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Smaller
Very very longer
Longer
None of these
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Question # 16
Two lenses of power +12 and -2 diopters are placed in contact the power of combination is
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10 diopters
8 diopters
6 diopters
12 diopters
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Question # 17
After elastic limit the shape of graph is
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Curved
Straight Line
Saw tooth
Arbitrary
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Question # 18
A pair of forces equal in magnitude and opposite in direction with non-coincident lines of action is known as
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A couple
A moment of force
A null vector
All of these
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Question # 19
A railway engine (mass 104 kg) is moving with a speed of 73 km/h.The force which should be applied to bring it to rest over a distance of 20 m is
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3,600 N
7,200 N
10,000 N
100,000 N
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Question # 20
In a photocell, sodium and potassium emit electrons for:
Choose an answer
Visible light
Infrared light
Ultraviolet light
All of these
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Question # 21
Power of a lens is equal to
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Focal length in meters
Reciprocal of focal length expressed in meters
Double the focal length
Half the focal length
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Question # 22
According o Einsteins theory space time is
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Just coordinates
A straight line
Curved
None of these
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