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Online Tests
Physics General Science Test Medium Mode MCQs With Answers
Question # 1
If the vector 5 N lies along with x-axis, then its component along y-axis will be:
Choose an answer
Zero
5 N
7 N
10 N
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Question # 2
The SI unit of current is
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watt
coulomb
volt
ampere
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Question # 3
In LCR circuit which one of the following statement is correct?
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L and R oppose each other
R value increase with frequency
The inductive reactance increases with frequency
The capacitive reactance increases with frequency
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Question # 4
In a semi-conductor material, the total current is
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only the +ve current
only the electronic current
sum of +ve and electronic current
all of them
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Question # 5
Light waves are:
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Transverse wave
Longitudinal wave
Compressional wave
None of them
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Question # 6
The closed loop gain of the non-inverting amplifier is given by
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G = R
2
/R
1
G = -R
2
/R
1
G = 1 - R
2
/R
1
G = 1 + T
2
/R
1
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Question # 7
According to kinetic theory of gases, molecules of a gas behave like
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Inelastic spheres
Perfectly elastic rigid sphere
Perfectly elastic non-rigid spheres
Inelastic non-rigid spheres
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Question # 8
When thorium nucleus emits aβ-particle, the daughter nucleus is called:
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Protactinium
Actinium
Uranium
Radium
Redon
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Question # 9
Two copper balls of 1 cm and 2 cm in diameter are simultaneously dropped in the same viscous medium. The terminal velocity of bigger ball is:
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Not affected due to its size
Twice that of small size ball
Four times that of small size ball
1/4th of that of small size ball
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Question # 10
At constant volume temperature is increased. Then
Choose an answer
Collision on walls will be less
Number of collisions per unit time will increase
Collision will be in straight lines
Collision will not change
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Question # 11
If the objects of different masses move with the same velocity, then it is more difficult to stop the
Choose an answer
lighter of the two
massive of the two
any one of them
both of them
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Question # 12
First law of thermodynamic is generalization
Choose an answer
Law of conservation of mass
Law of conservation of energy
Law of heat exchange
None of these
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Question # 13
Substances which undergo plastic deformation until they break, are known as
Choose an answer
brittle substances
ductile substances
plastic substances
neither of them
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Question # 14
The gravitational force of earth on a ball of mass one kilogram is 9.8 N. The attraction of ball on the earth is
Choose an answer
9.8 N
Negligible
Slightly less than 9.8 N
More than 9.8 N
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Question # 15
Single mode step index fibre is used to send
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white light
green light
a strong monochromatic light
yellow light
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Question # 16
Earth is considered to be
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a non-inertial frame
an inertial frame
an accelerated frame
none of the above
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Question # 17
As the working substance of a heat engine completes a cycle, there is no change in:
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Internal energy
Pressure
Volume
All of these
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Question # 18
A telescope is rotatable about the same vertical axis as the turntable, with a scale which is
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Main scale
Vernier scale
Half degree scale
None of these
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Question # 19
A parallel plate capacitor is first charged and then a dielectric slab is introduced between the plates,Then quantity that remains unchanged is
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Charge Q
Potential V
Capacity C
Energy U
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Question # 20
On a diffraction grating a large number of close parallel equidistant slits are ruled on it
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By hand
electronically
mechanically
none of them
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Question # 21
When the shear stress and shear strain are involved, then their ratio is called
Choose an answer
Young's modulus
Bulk modulus
Shear modulus
all of them
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Question # 22
The equation representing the inter conversion of matter and energy is written as
Choose an answer
E = mc
E = mc
2
E = mc
3
None of these
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