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Physics General Science Test Medium Mode MCQs With Answers
Question # 1
Bodies failing freely under gravity provide good example of motion under
Choose an answer
non-uniform acceleration
uniform acceleration
variable acceleration
increasing acceleration
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Question # 2
Einstein's theory about gravity if better than Newton's because it gave explanation of:
Choose an answer
Inverse square law
Bending of light
Both A and B
None of above
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Question # 3
A (100 W , 200 W) bulb is connected to a 160 V power supply. The power consumption would be
Choose an answer
64 W
80 W
100 W
125 W
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Question # 4
The effect of applying a force on a moving body is to change
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its direction of motion only
its speed of motion only
both the direction and speed of motion
its inertia only
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Question # 5
When a horse pulls a cart, the force that makes the horse run forward is the force exerted by
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The horse on the ground
The horse on the cart
The ground on the horse
The ground on the cart
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Question # 6
Which of the following is not thermo dynamical function?
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Enthalpy
Work done
Gibb's energy
Internal energy
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Question # 7
10
6
electrons are moving through a wire per second, the current developed is
Choose an answer
1.6 x 10
-19
1 A
1.6 x 10
-15
A
10
6
A
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Question # 8
A p-n junction is formed when a crystal of silicon is growth in such a way that its one half is doped with trivalent impurity and the other half with a impurity from
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2nd group
fourth group
fifth group
sixth group
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Question # 9
Which of the following quantity for particle executing SHM is non-zero at mean position
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Force
Acceleration
Velocity
Displacement
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Question # 10
The third band of the colour code:
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Gives the number of zeroes
Is decimal multiplier
Gives the resistance tolerance
Gives the third digit
Both (A) and (B)
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Question # 11
The counter, which also provides the power to the G.M. tube is called:
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Thin mica window
thin glass window
Airy window
Wooden window
None of these
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Question # 12
The total internal reflection takes place for glass-air boundary is then the angle is
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Equal to 41.8
o
Greater than 41.8
o
Less than 41.8
o
None of these
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Question # 13
For a monochromatic light passing from air to glass, which one of the following statement is true?
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Frequency and wavelength decreases
Frequency increases and wavelength decreases
Frequency stays same, wavelength increases
Frequency stays the same, wavelength decreases
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Question # 14
Vector A lies in the XY-plane. For what orientation will its components have opposite signs ?
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II-quadrant
III-quadrant
IV-quadrant
a and c
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Question # 15
The derived unit of pressure is
Choose an answer
kg/Ns
kgm
2
/s
2
kg/m
2
s
2
kg/ms
2
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Question # 16
Choose an answer
Bernoulli's equation
Torricelli's theorem
Venturi relation
None of these
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Question # 17
The typical speed of commercial automobile (max) is
Choose an answer
50 ms
-1
60 ms
-1
62 ms
-1
65 ms
-1
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Question # 18
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 # 19
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 # 20
In crystalline solids, atoms are held about their equilibrium positions depending upon the strength of:
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Adhesive forces
Nuclear forces
Inter atomic cohesive force
Electromagnetic force
None of these
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Question # 21
Crystalline solids are in the form of:
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Metals
Ionic compounds
Ceramics
Both A and B
All of these
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Question # 22
In Young s experiment the distance between two adjacent fringes for blue light is than that for green light
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Lesser
Greater
Equal
Lesser if distance between source and screen is large
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