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Physics Past Questions

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49 questions JAMB 2483 WAEC 1904 NECO 322 CUSTOM 10
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Past Questions

49 questions
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Question 1 of 20 49 total questions
Question 1
jamb 2017

Which of the following is not true of an electrical charge?

ANegative charge means deficit electrons
BNegative charge means excess of electrons
Celectric current means movement of electrons
DAll of the above
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Question 2
jamb 2017

Which of the following is true of an electrical charge?

APositive charge means deficit electrons
BNegative charge means excess of electrons
Celectric current means movement of electrons
DAll of the above
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Question 3
jamb 2017
Which of the following representations is correct for an atom X with 28 electrons and 30 neutrons?
A\(^{58}_{28}X\)
B\(^{30}_{28}X\)
C\(^{28}_{30}X\)
D\(^{58}_{30}X\)
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Question 4
jamb 2017
The volume of a fixed mass of gas is 10cm3 when its pressure is 400cmHg. Determine the volume of the gas when its pressure is 200cmHg.
A30cm3
B40cm3
C50cm3
D20cm3
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Question 5
jamb 2017
The velocity ratio of an inclined plane where angle of inclination in θ is
ASinθ
BCosθ
CTanθ
D\(\frac{1}{\sin \theta}\)
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Question 6
jamb 2017
Which of the following is not a mechanical wave?
Awave in closed pipe
Bradio waves
Cwater waves
Dsound waves
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Question 7
jamb 2017
Calculate the time taken for a mango fruit that fall from the tree 20 m to the ground [g = 10 ms-2]
A10s
B5s
C4s
D2s
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Question 8
jamb 2017

From the diagram above, calculate the total current in the circuit

A5.0A
B3.7A
C4.5A
D4.0A
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Question 9
jamb 2017

What is the cost of running seven 40 W lamps and five 80 W lamps for 12 hours of the electrical energy cost N7.00kWh?

AN80.00
BN45.36
CN65.00
DN57.12
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Question 10
jamb 2017

Calculate the angle of minimum deviation of a 60º prism of a refractive index 1.5[ \(sin^{-1}\) (0.75) = 49º]

 

A38o
B19.47o
C16.25o
D49o
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Question 11
jamb 2017
If silicon is doped with phosphorus, what type of semiconductor material will be formed?
AZener material
BP-n junction
Cn-type
Dp-type
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Question 12
jamb 2017

When two mirrors are placed at an angle of 90º to each other, how many images will be formed when an object is placed in front of the mirrors

A5
B4
C3
D2
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Question 13
jamb 2017
The action of blotting paper on ink is due to
Adiffusion
Bosmosis
Ccapillarity
Dsurface tension
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Question 14
jamb 2017

What is the speed of a body vibrating at 50 cyclic per second

A100 πrads\(_{−1}\)
B200 πrads\(_{−1}\)
C50 πrads\(_{−1}\)
D400 πrads\(_{−1}\)
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Question 15
jamb 2017

The instrument to measure the relative density of liquid is

Athermometer
Bhydrometer
Cspring balance
Dbeaker
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Question 16
jamb 2017
It is known that a neutron exists in a light atomic nucleus
Which of the following also exists in the nucleus?
AAn electron
BA β - particle
Cβ - particle
Dproton
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Question 17
jamb 2017

Which of the following surfaces will absorb radiant heat energy?

Awhite
Bred
Cblack
Dblue
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Question 18
jamb 2017
Which of the following is a semiconductor
Acopper
Bsilicon
Cplastic
DIron
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Question 19
jamb 2017
Which of the following is correct about an electric cell?
APrimary cell produces a large current for a long time
BSecondary cell has a very high internal resistance
CPrimary cell has a very low internal resistance
DSecondary cell has a very low internal resistance
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Question 20
jamb 2017
I. Refraction II. Interference III. Diffraction Which of the above properties are common to all waves?
AII and III only
BI, II and III
CI and II only
DI and III only
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