Physics Past Questions

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

50 questions
Question 1 of 20 50 total questions
Question 11
waec 2017

The diagram above illustrates a wave setup between two fixed ends 4.0m apart. If the speed of the wave is 1.0\(ms^{-1}\), its wavelength and frequency respectively are

A1m; 0.25Hz
B2m; 0.25Hz
C2m; 0.50Hz
D4m; 0.50Hz
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Question 12
waec 2017

A ray of light incident at an angle \(\theta\) in a rectangular prism grazes the surface of the prism on emerging from the prism. Determine the value of the angle. [Absolute refractive index of the material of the prism is 1.5] 

A41.8°
B48.2°
C60.8°
D90.0°
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Question 13
waec 2017

Plane waves through a narrow gap emerge as circular waves. This phenomenon is known as

Ainterference
Bdispersion
Crefraction
Ddiffraction
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Question 14
waec 2017

Consider the wave equation:  \(y =  10sin(x - 50t)\), What does the number 10 represent?

AAcceleration
BSpeed
CAmplitude
DWavelength
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Question 15
waec 2017

Which of the following statements about the 3rd overtone of a vibrating air column of an open pipe is correct? It has

A4 nodes
B5 nodes
C3 antinodes
D4 antinodes
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Question 16
waec 2017

A rainbow is formed when sunlight is incident on water droplets suspended in the air due to

Ainterference
Brefraction
Cdispersion
Ddiffraction
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Question 17
waec 2017

The diagram above illustrates two waves of equal amplitudes A and frequencies approaching each other. When the two waves meet at a point I midway between them, the vertical displacement of the resulting wave will be

A0
B\(\frac{A}{2}\)
C\(\frac{A}{4}\)
D\(2A\)
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Question 18
waec 2017

A vapour whose molecules are in dynamic equilibrium with those of its own liquid is said to be

Aunsaturated
Bgaseous
Csaturated
Ddiffused
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Question 19
waec 2017

The maximum density of water occurs at a temperature of 

A0°C
B4°C
C37°C
D273°C
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Question 20
waec 2017

Thermal energy added or removed from a substance that changes the state of the substance is called

Alatent heat
Bheat of reaction
Ccalorimetry
Dspecific heat
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Question 21
waec 2017

A motor of a corn mill machine operates on electrical energy of \(1.44 \times 10^{5}\)J. If one-quarter of the energy is wasted on sound and heat, determine the efficiency of the machine.

A25%
B36%
C64%
D75%
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Question 22
waec 2017

Which of the following devices converts light energy to electrical energy?

ABulb
BTelevision
CSolar cell
DLight emitting diode (LED)
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Question 23
waec 2017

The diagram above illustrates a beaker of water being heated. It is observed that as the bubbles rise they get bigger in size.The reason for this observation is

Awater pressure on the bubbles decreases
Bdensity of water increases with rise in temperature
Cvolume of water increases with rise in temperature
Datmospheric pressure on the bubbles decreases
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Question 24
waec 2017

A plane is inclined at an angle \(\theta\) to the horizontal. Its velocity ratio is

A\(sin\theta\)
B\(tan\theta\)
C\(\frac{1}{sin\theta}\)
D\(\frac{1}{tan\theta}\)
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Question 25
waec 2017

Ice of mass 50g at 0°C was completely melted by 70% of the total heat energy supplied. Calculate the total heat energy supplied  [Specific latent heat of fusion of ice = 336\(Jg^{-1}\)]

A2400J
B6800J
C7251J
D24000J
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Question 26
waec 2017

The energy stored in a spring of stiffness constant k = 2000\(Nm^{-1}\) when extended 4cm is

A0.16J
B1.60J
C16.00J
D160.00J
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Question 27
waec 2017

Which of the following graphs correctly represents the relationship between the kinetic energy (K.E) and the displacement (d) from point of release of a swinging pendulum bob?

AI
BII
CIII
DIV
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Question 28
waec 2017

A body can undergo the following types of motion except

Arandom
Brotational
Ctranslational
Drelative
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Question 29
waec 2017

The angle at which a projectile must be fired to cover maximum range is 

A30°
B45°
C60°
D90°
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Question 30
waec 2017

A motorist travelling at 72\(kmh^{-1}\) had his eyes shut for 0.4s during a hard sneeze. Calculate the distance covered by him during this time interval.

A50.0m
B28.8m
C18.0m
D8.0m
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