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Physics General Science Test Medium Mode MCQs With Answers
Question # 1
The superposition of the two waves of same frequency and amplitude travelling in the same direction gives to an effect called
Choose an answer
Diffraction
Interference
Polarization
Dispersion
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Question # 2
Which one of the following is dimensionless.
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Acceleration
Velocity
Density
Angle
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Question # 3
Recently a complex crystalline structure known as Yetrium Barium Copper Oxide have been reported to become superconductor at
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125 K
25 K
263 K
163 K
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Question # 4
A line which represents the direction of travel of a wave is known as:
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Spherical Wavefront
Locus
Ray
Either B or C
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Question # 5
Instead of moving the coil towards a magnet, the magnet is moved towards the coil with the same speed. The galvanometer shows current:
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Of same magnitude in the same direction
Of different magnitude in the same direction
Of same magnitude but in opposite direction
Of different magnitude in the opposite direction
None of these
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Question # 6
The direction of induced current is always so as to oppose the cause which produces it. This is
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Lenz's law
Ampere's law
Faraday's law
Coulomb's law
None of these
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Question # 7
A tube tapers from 20 cm diameter to 2 cm, the velocity at first cross-section is 50 ms
-1
then velocity at second cross-section is
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5000 cms
-1
500 cms
-1
50 cms
-1
0.5 cm/s
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Question # 8
Kirchhoff's first rule is also called:
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Loop rule
Thumb rule
Point rule
Right hand rule
None of these
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Question # 9
In a three phase a.c generator if the first coil has a phase 0, then the other two coils will have phases
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90
° - 120
°
20
° and 140
°
120
° and 240
°
120
° and 140
°
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Question # 10
Viscosity is defined as
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the friction between fluid and its container's walls
the internal friction between two layers of fluid
the resistance to flow a fluid experiences
the extent to which outside factors effect the fluid's flow
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Question # 11
Electric lines of force
Choose an answer
Intersect each other
Are always parallel
Are always anti-parallel
Never intersect
None of these
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Question # 12
The work done by the gas during the isobaric expansion is equal to
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Area of rectangle
Area of triangle
Area of parallelogram
None of these
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Question # 13
Internal friction of fluid is called
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Surface tension
Viscosity
Resistance
Cohesive force
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Question # 14
When R
x
and R
y
are negative, the resultant lies in the third quadrant and its direction is
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θ = 180 + Φ
θ = 180 - Φ
θ = 90 + Φ
None of these
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Question # 15
A cable breaks if stretched by more than 2 mm.It is cut into two equal parts.How much either part can be stretched without breaking?
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0.25 m
0.5 m
1 mm
2 mm
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Question # 16
The effect is to increase the inflation the bag is
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To compress the blood vessels
To increase external pressure
To cut off the flow of blood
All of these
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Question # 17
Bulk modulus for diamond is
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250
540
695
714
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Question # 18
An electric fan rotating in 3 revs
-1
is switched off. It come sot rest in 18.0 sec. Find the value of acceleration which is
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+ 1.267 revs
-2
0027 revs
-2
- 0.167 revs
-2
- 0.152 revs
-2
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Question # 19
Gaussian surface may be
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Spherical
Rectangular
Any shape
None of these
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Question # 20
The capacity of two way telephone circuits of INTESAT VI satellite is circuits
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10, 000
20,000
30,000
40,000
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Question # 21
When a plane polarized light is passed through certain crystals they
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Are totally absorbed
Are totally reflected
Rotate the plane of polarization
None of these
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Question # 22
Thick tar and honey have
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Small coefficient of viscosities
Large coefficient of viscosities
Zero coefficient of viscosities
Moderate coefficient of viscosities
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