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11th Class Part 1 Physics Test Online MCQs With Answers
Question # 1
The ideal gas law is.
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PV =NVk
P = NkT
PV =nRT
P=nRT
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Question # 2
Parallel vectors of same magnitude will be
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Equal
Opposite
Both a and b
None of these
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Question # 3
The location of near point changes with
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Age
Size of the eye
Sharpness of the eye
None of these
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Question # 4
The periodic variations of sound between maximum and minimum loudness are called.
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Doppler's effect
reflection
Laplace correction
Beats
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Question # 5
Angular momentum has the same unit as
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Impulse x distance
Power x time
Linear x time
work x frequency
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Question # 6
Venturimeter is used ot measure.
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Speed of fluid
Pressure of fluid
Volume of fluid
Mass of fluid
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Question # 7
the wavelength of transverse wave travelling with a speed 'v' having frequency 'f' in equal to
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f/v
Vf
V/f
f/V2
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Question # 8
The speed of sound increases with the increase of in
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Pressure
Volume
Temperature
Density
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Question # 9
The power needed to lift a mass of 5000 g to height of 1 m in 2 secnd is
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2.45 watt
24.5 watt
245 watt
2.45 watt
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Question # 10
The ability of reveal the minor details of an object under examination is called.
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Resolving power
Magnification
Scattering
Reflection
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Question # 11
Apparent weight of a man is in upward accelerated lift will
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Increases
Decreases
Remain same
Increases then decrees
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Question # 12
If 30 waves per second pass through a medium at a speed 30 ms-1, then the wavelength is.
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30 m
15 m
1 m
28 m
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Question # 13
If the object is at 5 cm from the lens of simple microscope than its magnifying power will be.
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5
10
15
25
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Question # 14
For working of heat engine, there must be.
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A source
A sink
either of these
Both of these
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Question # 15
If velocity time graph is parallel to time axis, then acceleration of moving body will be.
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Maximum
Positive
Zero
Negative
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Question # 16
The Bragg's equation is given by
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Question # 17
According to Newton's formula, the speed of sound in air at STP is
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332 ,ms-1
340 ms-1
350 ms-1
280 ms-1
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Question # 18
A man of mass 5 kg is falling freely, the fore acting on it will be
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5 N
9.8 N
19.6 N
49 N
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