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Online Tests
Physics General Science Test Medium Mode MCQs With Answers
Question # 1
Blood pressure is measured in torr. Which of the following units could belong to torr?
Choose an answer
N m
-1
N m
-2
N m
N
-1
m
-2
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Question # 2
When a platinum wire is heated, it appears white at
Choose an answer
1600
°C
900
°C
1100
°C
1300
°C
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Question # 3
Velocity of a body changes if
Choose an answer
direction of the body changes
speed of the body changes
neither speed nor direction changes
either speed or direction changes
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Question # 4
For a fixed force, larger is the mass of a body the
Choose an answer
greater is its acceleration
smaller is its acceleration
smaller is its weight
zero is its acceleration
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Question # 5
An ideal choke (used along with fluorescent tube) would be
Choose an answer
A pure resistor
A pure capacitor
A pure inductor
A combination of an inductor and a capacitor
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Question # 6
If a given spring of spring constant K is cut into two identical segments, the spring constant of each segment is:
Choose an answer
K/2
2 K
4 K
None of these
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Question # 7
When the velocity of a liquid flowing steadily in a tube increases, its pressure?
Choose an answer
Decreases
Increases
Remains same
Zero
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Question # 8
Work-energy principle states that work done on the body by applied force is equal to change in:
Choose an answer
Potential energy
Kinetic nergy
Linear momentum
None of these
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Question # 9
At the constant temperature, if the value of a given mass of a gas is double, then the density of gas becomes:
Choose an answer
Double
Remains constant
Half
None of these
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Question # 10
A 50 volt battery is connected across 10 ohm resistor. The current is 4.5 A. The internal resistance of the battery is
Choose an answer
Zero
0.5
Ω
1.1
Ω
5.0
Ω
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Question # 11
The dot product of electric field intensity E and vector area A is called
Choose an answer
Electric potential
Electric flux
Electric field
Magnetic field
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Question # 12
Polymers are the chemical combination of carbon with:
Choose an answer
Nitrogen
Oxygen
Hydrogen
All of these
None of these
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Question # 13
Two projectiles are fired from the same point with the same speed at angles of projection 60° and 30° respectively.Which one of the following is true?
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Their range will be same
Their maximum height will be same
Their landing velocity will be same
their time of flight will be same
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Question # 14
If an electron has an initial velocity in a direction different from that of an electric field the path of
Choose an answer
Straight line
Circle
Ellipse
Parabola
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Question # 15
Five equal forces of 10N each are applied at one point and all are lying in one plane.If the angles between them are equal,the resultant force will be:
Choose an answer
Zero
10 N
20 N
10 √2 N
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Question # 16
Geysers usually occur in
Choose an answer
Hot regions
Cold region
Volcanic regions
All of these
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Question # 17
The unit cell of the shape of match box is called
Choose an answer
Cubic
Tetragonal
Orthorhombic
Rhomboheral
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Question # 18
Young's modulus for diamond is
Choose an answer
700
913
1100
1120
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Question # 19
Snell's Law is defined as
Choose an answer
n1 sin θ
2
= n
2
sin θ
n sin θ
1
= n
1
sin θ
2
n
1
sin θ
1
= n
2
sin θ
2
None of these
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Question # 20
When a germanium atom is doped with phosphorous atoms it becomes
Choose an answer
N-type semiconductor
p-type semiconductor
An insulator
None of them
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Question # 21
A stethoscope detects the instant at which the external pressure is
Choose an answer
Greater than systolic pressure
Equal to systolic pressure
Lower than systolic pressure
None of these
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Question # 22
In Newton s rings the central spot appears dark due to
Choose an answer
Phase change
Destructive interference
Small eye piece of optical device
Both a and b
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