Physics Past Questions

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2,483 questions JAMB 2483 WAEC 1904 NECO 322 CUSTOM 10
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Past Questions

2,483 questions
Question 1 of 20 2,483 total questions
Question 521
jamb 2009

If the pressure of the vapor on top of an enclosed liquid is equal to the atmospheric pressure, what will be the temperature of the liquid enclosed?

Aroom temperature
Bboiling point
Cfreezing point
Dstandard temperature
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Question 522
jamb 2009

An electric heater rated 220V, 1000 W is immersed into a bucket full of water. Calculate the mass of water if the temperature changes from 30°c to 100°c and the current flows for 300seconds. [specific heat capacity of water = 4200 jkg-1 K-1]

A4.28 kg
B42.86 kg
C1.02 kg
D7.14 kg
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Question 523
jamb 2009

At 4°c, the volume of a fixed mass of water is?

Aconstant
Bminimum
Cmaximum
Dzero
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Question 524
jamb 2009

The thermometer whose reading is indicated by a change in color of its thermometric property is the?

Abi-metalic strip thermometer
Bthermocouple
Cplatinium resistance thermometer
Doptical pyrometer
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Question 525
jamb 2009

A plastic sphere floats in water with 50% of its volume submerged. if it floats in glycerine with 40% of its volume submerged,the density of the glycerine is?

A1400 kgm-3
B1250 kgm-3
C500 kgm-3
D1000 kgm-3
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Question 526
jamb 2009

If a load of mass 10N stretched a cord by 1.2cm, what is the total work done?

A6.0 x 10-2J
B7.6 x 10-2J
C1.8 x 10-2J
D6.6 x 10-2J
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Question 527
jamb 2009

I. Density of the liquid.
II. Acceleration due to gravity.
III. Type of container of the liquid.
IV. The constituents of the liquid.
which of the above conditions will NOT affect the pressure of fluid?

AI and III only
BII and III only
CIII and IV only
DI and II only
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Question 528
jamb 2009

If a heavy barrel is rolled up a plane inclined at 30° to the horizontal. its velocity ratio will be?

A3.0
B3.1
C3.2
D2.0
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Question 529
jamb 2009

An object of mass 80 kg is pulled on a horizontal rough ground by a force of 500 N. Find the coefficient of static friction.
[g = 10 ms\(^{-2}\)]

A0.8
B0.4
C1.0
D0.6
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Question 530
jamb 2009

If a cage containing a truck of coal weighing 750 kg is raised to a height of 90 m in a minute, what is the total power expended?
[g = 10 m\s\(^2\)]

A11.50 kw
B12.60 kw
C11.25 kw
D12.10 kw
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Question 531
jamb 2009

I. The motion of the tyres of a moving car.
II. The motion of a loaded test tube oscillated
vertically.
III. The beating of the heart.
IV. A stone tied to a string and whirled round.
V. The motion of the pistons in a gasoline engine.
Which of the motions above is simple harmonic?

AIII, IV and V only
BII, III and V only
CII, III and IV only
DI,II and III only
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Question 532
jamb 2009

A bullet fired vertically upward from a gun held 2.0 m above the ground reaches its maximum height in 4.0s. calculate its initial velocity.
[g = 10ms\(^-2\)]

A10 ms-1
B8 ms-1
C40 ms-1
D20 ms-1
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Question 533
jamb 2009

What is the acceleration between two points on a velocity time graph which has coordinates
(10s, 15 ms-1)
and (20 s, 35 ms-1)?

A1.7 ms-2
B3.50 ms-2
C1.00 ms-2
D2.00 ms-2
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Question 534
jamb 2009
I. Diameter of a small ball bearing.
II. Thickness of a pieces of paper.
III. Diameter of a measuring cylinder.
IV. Length of a piece of wire.
Which of the above can be measured using a micrometer screw gauge?
AI, II and IV only .
BI and II only
CII and III only
DIII and IV only
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Question 535
jamb 2008

\(^{14}_7\)N + \(^4_2\)He  → \(^{17}_8\)O + X

In the equation above, the particles X is?

Aa proton
Ba neutron
Can α - particle
Da β - particle
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Question 536
jamb 2008

If electron are accelerated from rest through a potential difference of 10kv, what is the wavelength of the associated electron?
[m = 9.1 x 10\(^{-31}\)kg, e = 1.6 x 10\(^{-19}\)C, h = 6.6 x 10\(^{-34}\)js]

A1.22 x 10-11m
B3.87 x 10-10m
C2.27 x 1011m
D2.27 x 1014m
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Question 537
jamb 2008

Given the inductor of inductance 5mH, 10mH and 20mH connected in series, the effective inductance is

A0.35mH
B3.50mH
C2.90mH
D35.0mH
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Question 538
jamb 2008

Find the effective resistance in the diagram above

A6 Ω
B12 Ω
C18 Ω
D24 Ω
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Question 539
jamb 2008

If a concave lens of focal length 12cm is used to produce a real image four times the size of the object, how far from the lens must the object be placed?

A10 cm
B15 cm
C20 cm
D25 cm
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Question 540
jamb 2008

The above figure shows the motion of a progressive wave along a string. The particle motion of the medium is in direction?

Aparallel to OX
Bparallel to OY
C60o to OX
D60v to OY
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