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Online Tests
Physics Fsc Part 1 Online Test MCQs With Answers
Question # 1
When a vector is multiplied by a (-)ve number its direction
Choose an answer
Remains constant
Reversed
Change by 90°
None of these
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Question # 2
Diffraction is a special type of
Choose an answer
Reflection
Polarization
Interference
Refraction
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Question # 3
When a body moves in circular motion, the angle between linear and angular velocity is.
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180
o
90
o
60
o
75.3
o
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Question # 4
No spark plug is needed in the
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Petrol engine
Diesel engine
Gas engine
Water engine
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Question # 5
Which is not the essential component of a spectrometer.
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Collimator
Telescope
Turntable
Microscope
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Question # 6
Total change in momentum of an isolated system is
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Always (+) ve
Always (-) ve
Has maximum value
Zero
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Question # 7
One complete round trip of a vibrating body is called.
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Frequency
Time period
Vibration
Amplitude
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Question # 8
In an object is placed in between focus point and Opticla center of a convex lens, the image formed by lens is.
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Real inverted
Virtual diminshed
Virtual inverted
Virtual erected
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Question # 9
The wavelength of fundamental note in one end closed pipe in term of length 'l' of pipe is.
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4 l
2l
l
1/4 l
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Question # 10
Radar system is an application of.
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Chemical effect
Electric effect
Magnetic effect
Doppler's effect
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Question # 11
The process of confining the beam of light to vibrate in one plane is called.
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Interference
Diffraction
Polarization
Total internal refraction
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Question # 12
A device based upon the thermodynamics property of matter is called.
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Calorimeter
Heat engine
thermometer
Voltmeter
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Question # 13
3 Joules of work id done is 3 seconds, then power
Choose an answer
6 Watt
1 Watt
3 Watt
2 Watt
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Question # 14
the length of simple pendulum of time period 1 second is
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2 m
1 m
0.5
0.25 m
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Question # 15
Who did give the correct formula for the speed of sound in air?
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Boyle
Laplace
Newton
Einstein
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Question # 16
The speed of stars and galaxies can be calculated by
Choose an answer
Compton effect
Stefan's law
Doppler's effect
Pascal's law
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Question # 17
Young in 1801 performed experiment for the first time about
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Interference
Diffraction
Polarization
Particle nature of light
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Question # 18
A man weight 1000 N in a stationary lift. If the lift moves up with an acceleration of 10 ms-2. then its weight becomes.
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1000 N
2000 N
3000 N
0 N
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