Physics Past Questions

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4,719 questions JAMB 2483 WAEC 1904 NECO 322 CUSTOM 10
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Past Questions

4,719 questions
Question 1 of 20 4,719 total questions
Question 131
jamb 2024

Two tuning forks of frequencies 6Hz and 4Hz respectively are sounded together. The beat frequency is 

A2Hz
B5Hz
C8Hz
D10Hz
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Question 132
jamb 2024

The tangential force acting on an object that opposes it from sliding freely on the adjacent surface is called

ANormal force
BFriction force
CWeight
DUpthrust
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Question 133
jamb 2024

The gravitational force between two objects  masses 10\(^{24}\)kg and 10\(^{27}\)kg is 6.67N. Calculate the distance between them [ G = 6.6 x 10\(^{-11}\)Nm\(^2\)kg\(^{-2}\) ]

A1.0 x 10\(^{20}\)m
B2.0 x 10\(^{-20}\)m
C1.0 x 10\(^{-20}\)m
D2.0 x 10\(^{20}\)m
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Question 134
jamb 2024

What will be the weight of a man of mass 60kg standing in a lift if the lift is descending vertically at 3ms\(^2\)?

A780N
B546N
C660N
D420N
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Question 135
jamb 2024

Calculate the depth of a swimming pool if the apparent depth is 10cm. ( Refractive index of water = 1.33 )

A7.5cm
B10.0cm
C13.3cm
D6.87cm
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Question 136
jamb 2024

An ideal transformer has

AMaximum primary resistance
BNo flux leakage
CHysteresis
DEddy current
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Question 137
jamb 2024

The gravitational force between two objects is 10N, what is the new value of the force if the distance between them is halved? 

A10N
B20N
C40N
D80N
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Question 138
jamb 2024

Using the diagram above, the effective force pushing it forward at an angle 60º is 

A25.00N
B28.87N
C38.50N
D43.30N
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Question 139
jamb 2024

An electron falls from an energy level of -5.44eV to another energy level, E. If the emitted photon is of wavelength 5.68 x 10\(^{-6}\)m, calculate the energy change. [ Plank's c x 10\(^{-34}\)Js, emitted radiation speed = 3.0 x 10\(^8\)ms\(^{-1}\)]

A1.49 x 10\(^{-20}\)J
B1.49 x 10\(^{-19}\)J
C3.49 x 10\(^{-20}\)J
D3.49 x 10\(^{-19}\)J
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Question 140
jamb 2024

A red shirt under a red light appears pale because red

Areflects nearly all light falling on it
BUnable to reflect lights falling on it
Cabsorbs all lights falling on it
Dabsorbs other colours and reflects red
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Question 141
jamb 2024

Which of the following materials has a very large energy gap band?

AConductor
BInsulator
CSemiconductor
DIntrinsic semiconductor
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Question 142
jamb 2024

If the velocity ratio of a machine is 4, what does it mean?

ALoad and the effort are equal.
BDistance moved by effort is 4 times greater than the distance moved by load.
CThe efficiency is low
DThe load is greater than the effort
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Question 143
jamb 2024

A body is whirled in a horizontal circle at the rate of 800 revolutions per minute. Determine the angular velocity

A100\(\pi\)rads\(^{-1}\)
B33.3\(\pi\)rads\(^{-1}\)
C29.5\(\pi\)rads\(^{-1}\)
D26.7\(\pi\)rads\(^{-1}\)
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Question 144
jamb 2024

When a cell of e.m.f 3.06V is connected, the balance of a potentiometer is 75cm, Calculate the new balance of a cell of e.m.f  2.295V

A56.26cm
B73.20cm
C77.80cm
D78.70cm
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Question 145
jamb 2024

Calculate the quantity of heat for copper rod whose thermal capacity is 400Jk\(^{-1}\) for a temperature change of 60ºC to  80ºC

A2KJ
B4KJ
C6KJ
D8KJ
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Question 146
jamb 2024

At absolute zero temperature, the average velocity of the molecules 

ADecreases
BIncreases
CIs zero
DIs uncertain
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Question 147
jamb 2024

What is the least possible error encountered when taking measurement with a metre rule?

A1.1mm
B0.5mm
C0.2mm
D0.1mm
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Question 148
jamb 2024

Convert 60ºC to degree Fahrenheit

A111.15\(^0\)F
B115.56\(^0\)F
C132.23\(^0\)F
D140.00\(^0\)F
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Question 149
jamb 2024

A hydrometer of mass y kg and volume 2y x 10\(^{-5}\)m\(^3\) floats in a fluid with 20% of its volume above the fluid, what is the density of the fluid?

A6.22 x 10\(^4\)kgm\(^{-3}\)
B6.23 x 10\(^4\)kgm\(^{-3}\)
C6.24 x 10\(^4\)kgm\(^{-3}\)
D6.25 x 10\(^4\)kgm\(^{-3}\)
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Question 150
jamb 2024

The energy in a moving car is an example of 

AMechanical energy
BElectrical energy
CPotential energy
DKinetic energy
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