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NAT II Physical Science Physics MCQs With Answers
Question # 1
A motorist travels A to B at a speed at 40 km/h and returns at speed of 60 km/h. His average speed will be
Choose an answer
40 km/h
48 km/h
50 km/h
60 km/h
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Question # 2
A body moving in circular motion with constant speed has
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Constant velocity
Constant acceleration
Constant kinetic energy
Constant displacement
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Question # 3
At 0
°
K which of the following properties of a gas will be zero?
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Kinetic energy
Potential energy
Vibrational energy
Density
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Question # 4
The nuclear model of atom was proposed by
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J.J Thomson
E. Rutherford
Neil Bohr
Summerfield
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Question # 5
Blood has a density
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Equal to water
Greater then water
Lesser then water
None of these
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Question # 6
The dot product of two vectors is negative when
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They are parallel vectors
They are anti-parallel vectors
They are perpendicular vectors
None of the above is correct
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Question # 7
Which of the following is a scalar quantity?
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Density
Displacement
Torque
Weight
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Question # 8
The force between two charges 0.06 m apart is 5 N. If each charge is moved towards the other by 0.01 m, then the force between them will become
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7.20 N
11.25 N
22.50 N
45.00
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Question # 9
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 # 10
As the electron in Bohr orbit of hydrogen atom passes from stat n = 2 to n = 1, the kinetic energy K and potential energy U change as
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K two fold, U also two fold
K four fold, U also four fold
K four fold, U two fold
K two fold, U four fold
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Question # 11
The number of turns in the primary coil of a transformer is 200 and the number of turns in the secondary coil is 10. If 240 volts ac are applied to the primary, the output the secondary will be
Choose an answer
48A
24V
12V
6V
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Question # 12
Mechanical waves on the surfaces of a liquid are
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Transverse
Longitudinal
Torsional
both transverse and longitudinal
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Question # 13
For obtaining appreciable extension, the wire should be
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Short and thin
Long and thin
Short and thick
Long and thick
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Question # 14
At constant volume temperature is increased. Then
Choose an answer
Collision on walls will be less
Number of collisions per unit time will increase
Collisions will be in straight lines
Collisions will not change
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Question # 15
Absolute temperature can be calculated by
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Mean square velocity
Motion of the molecule
Both A and B
None of these
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Question # 16
At a certain instant a stationary transverse wave is found to have maximum kinetic energy. The appearance of string of that instant is:
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Sinusoidal shape with amplitude A/3
Sinusoidal shape with amplitude A/2
Sinusoidal shape with amplitude A
Straight line
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