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 491
jamb 2010

Dispersion occurs when white light passes through a glass prism because of the?

Adifferent hidden colours in the glass
Bdifferent speeds of the colour in the glass
Cdefects in the glass
Dhigh density of the glass
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Question 492
jamb 2010

Which of the following is used for the correction of short sightedness?

Aconvex lens
Bconcave lens
Cconvex mirror
Dconcave mirror
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Question 493
jamb 2010

An object is embedded in a block of ice, 10 cm below the plane surface. if the refractive index of the ice is 1.50, the apparent depth below the surface is?

A2.50 cm
B6.67 cm
C7.50 cm
D7.63 cm
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Question 494
jamb 2010

An object 4 cm high is placed 15 cm from a concave mirror of focal length 5 cm. The size of the image is?

A2 cm
B3 cm
C4 cm
D5 cm
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Question 495
jamb 2010

In comparing the camera and the human eye, the film of the camera function as the?

Aretina
Biris
Ccornea
Dpupil
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Question 496
jamb 2010

During a thunderstorm, the sound is heard over a long time. this phenomenon is referred to as?

Adiffraction of sound
Brefraction of sound
Csuperposition
Dreveraberation
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Question 497
jamb 2010

The sound of an electricity bell dies down slowly when air is slowly pumped out from a bottle because

Athe wavelength of sound becomes greater in the bottle
Bsound cannot pass through the bottle
Csound needs a material medium
Dsound can pass through a vacuum
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Question 498
jamb 2010

The wavelength of a wave traveling with a velocity of 420 ms\(^{-1}\) is 42 m. What is its period?

A1.2 s
B1.0 s
C0.5 s
D0.1 s
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Question 499
jamb 2010

Which of the following has no effect on radiation?

Anature of surface
Bdensity
Csurface area
Dtemperature
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Question 500
jamb 2010

The pressure of one mole of an ideal gas of volume 10\(^-2\) m\(^3\) at a temperature of 27°c is
[molar gas c J mol\(^{-1}\) k\(^{-1}\)]

A2.49 x 104 Nm-2
B2.24 x 104 Nm-2
C2.49 x 105 Nm-2
D2.24 x 105 Nm-1
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Question 501
jamb 2010

A vapor is said to be saturated when?

Aa dynamic equilibrium exists between liquid molecules and the vapour molecules
Ba dynamic equilibrium exists such that more molecules return to the liquid than are leaving it
Cthe temperature of the vapour varies
Dthe vapour pressure is atmospheric
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Question 502
jamb 2010
The small droplet of water that forms on the grass in the early hours of the morning is
Ahail
Bdew
Cfog
Dmist
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Question 503
jamb 2010

If a container is filled with ice to the brim, what happens to the level of water when the ice completely melts?

Athe level of water goes up
Bthe water in the glass outflows
Cthe level of water remains unchanged
Dthe level of water drops
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Question 504
jamb 2010

Heat is radiated by hot objects in the form?

Ax-rays
Blight energy
Cinfrared rays
Dsolar energy
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Question 505
jamb 2010

The density of a certain oil on frying becomes 0.4 kgm\(^{-3}\) with the volume of 20m\(^{3}\). what will be its initial volume when its initial density is 0.8 kgm\(^{-3}\) assuming no loss of oil due to spillage?

A12m3
B10m3
C8m3
D5m3
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Question 506
jamb 2010

One special advantage of alcohol over mercury as a thermometric liquid is its?

Alow density
Blow freezing point
Chigh specific
Dlow boiling point
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Question 507
jamb 2010

A hydrometer is an instrument used in measuring?

Avapour pressure of a fluid
Bdensity of liquid
Crelative humidity of a liquid
Drelative density of a liquid
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Question 508
jamb 2010

The accurate measurement of the relative density of a substance in its powdered form is done with a beam balance and?

Aa density bottle
Ban eureka can
Ca pipette
Da burette
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Question 509
jamb 2010

In a hydraulic press, the pump piston exerts a pressure of 100 pa on the liquid. what force is exerted in the second piston of cross sectional area 3 m2?

A300 N
B200 N
C150 N
D100 N
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Question 510
jamb 2010

If a wire 30 cm long is extended to 30.5 cm by a force of 300 N. find the strain energy of wire

A0.75 J
B7.50 J
C75.00 J
D750.00 J
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