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Physics General Science Test Medium Mode MCQs With Answers
Question # 1
To get a resultant displacement of 10 m, two displacement vectors of magnitude 6 m and 8 m should be combined
Choose an answer
Parallel
Antiparallel
At angle 60
°
Perpendicular to each other
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Question # 2
A metal road of length 1m is moving at a speed of 1 ms
-1
In a direction making angle of 30
º with 0.5 Y magnetic field. The emf produced in the rod is:
Choose an answer
0.25 N
0.25 V
2.5 V
2.5 N
25 V
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Question # 3
If rope of lift breaks suddenly. The tension exerted by the surface of lift is (a=Acceleration of lift)
Choose an answer
mg
m (g+a)
m (g - a)
0
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Question # 4
When the different streamlines cannot cross each other, then this condition is known as
Choose an answer
continuity condition
turbulent flow condition
steady flow condition
none of them
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Question # 5
When a stress changes length, it is called the
Choose an answer
compressional stress
tensile stress
shear stress
any one of them
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Question # 6
A prism splits a beam of white light into seven component colors. This is so because
Choose an answer
Phase of different colors is different
Amplitude of different colors is different
Wavelength of different colors is different
Velocity of different colors is different
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Question # 7
According to Huygen's principle
Choose an answer
light travels in straight line
Light is a transvers wave
Light has dual nature
All points on the primary wave-front are the sources of secondary wavelets
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Question # 8
To sources are said to be coherent if they have:
Choose an answer
Same amplitude
Same wavelength
Definite phase relation with each other
None of them
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Question # 9
The flow of an ideal fluid is
Choose an answer
streamline flow
incompressible flow
non-viscous
all of the above
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Question # 10
The ratio of the size of the image to that of object is called:
Choose an answer
Focal length
Aperture
Linear magnification
Principal axis
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Question # 11
The galvanometer can be made sensitive if the value of the factor C/BAN is
Choose an answer
constant
small
large
none of these
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Question # 12
At high altitude the blood oozes out of the nose and ear because
Choose an answer
The blood pressure increase at high altitudes
The percentage of oxygen in the air increase
The atmospheric pressure decreases
The density of blood decrease at high altitudes
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Question # 13
SI Unit of power is
Choose an answer
Joule
Pound
Watt
Dyne
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Question # 14
The branch of physics which concerned with the ultimate particles of which the universe is composed is known as
Choose an answer
Solid state Physics
Particle Physics
Nuclear Physics
Atomic physics
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Question # 15
Photo cells are used for :
Choose an answer
Security and counting system
Automatic door system
Automatic street lighting
All of these
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Question # 16
Under a constant torque,the angular momentum of a body changes from A to 4A second find the torque.
Choose an answer
(3/4)A
(1/4)A
3A
(4/3)A
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Question # 17
The clouds float in the atmosphere because of
Choose an answer
Their low temperature
Their low viscosity
Their low density
Creation of low pressure
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Question # 18
Torque of a force is a vector quantity, its direction is determined by
Choose an answer
Right hand rule
Knowing the direction of F
Knowing the position of origin
none of these
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Question # 19
Which light travels faster in optical fibres?
Choose an answer
visible light
ultraviolet
infra-red
any one of them
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Question # 20
The light signal in an optical fibre is totally confined due to the
Choose an answer
total internal reflection
continuous refraction
both of them
either of them
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Question # 21
Because of large mass when 𝑎 −paricle enters the atom or molecule it:
Choose an answer
Moves in zigzag path
Moves along straight line
Moves along circular path
None of these
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Question # 22
For keeping a body in circular motion,the force required is
Choose an answer
Centripetal
Centrifugal
Radial
Tangential
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