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Physics Past Questions

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

89 questions
All JAMB WAEC NECO CUSTOM
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Question 1 of 20 89 total questions
Question 21
waec 2013

A body of mass 2kg is released from rest on a plane inclined at an angle of 60° to the horizontal. Calculate the acceleration of the body down the plane.[g = 10ms\(^{-2}\)]

A3.1ms-2
B5.2ms-2
C6.0ms-2
D8.7ms-2
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Question 22
waec 2013
The slope of a linear distance-times graph represents
Aacceleration
Bdisplacement
Cspeed
Dvelocity
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Question 23
waec 2013

Solid friction, like viscosity is

Aindependent of the surface area in contact
Bindependent of the relative motion between layers
Cdependent on normal reaction
Din opposition to motion
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Question 24
waec 2013

Which of the following statements about pressure in a liquid is correct?

Athe pressure in a liquid increases with depth
Bthe higher the density of a liquid, the lower the pressure it exerts
Cpressure in liquid act only in a direction perpendicular to the sides of the containing vessel
Dpressure is independent of the acceleration due to gravity
View Explanation & Discuss
Question 25
waec 2013

Which of the following units is equivalent to the watt?

Akgms-2
Bkgm2s-3
Ckgm2s-2
Dkgm2s-1
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Question 26
waec 2013

The rising of a liquid in an open and ended glass tube of narrow bore is

Aosmosis
Badhesion
Ccapillarity
Dsurface tension
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Question 27
jamb 2013
The bond between silicon and germanium is
Adative
Bcovalent bond
Ctrivalent
Dionic
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Question 28
jamb 2013
The energy of a photo having a wavelength of 10-10m is
(h= 6.63 x 10 -34Js, c =3.0 x 10 8ms-1)
A2.0 x 10 -15J
B1.7 x 10 -13J
C2.0 x 10 -12J
D1.7 x 10 -12J
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Question 29
jamb 2013
The particle nature of light is demonstrated by the
Aphotoelectric effect
Bspeed of light
Ccolours of light
Ddiffraction of light
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Question 30
jamb 2013

In photo-emission, the number of photo-electrons ejected per second depends on the?

Afrequency of the beam
Bwork function of the metal
Cthreshold frequency of the metal
Dintensity of the beam
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Question 31
jamb 2013
Calculate the energy of the third level of an atom if the ground state energy is - 24.8eV
A-9.20eV
B-8.20eV
C-2.75eV
D-1.75eV
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Question 32
jamb 2013
If a current of 2.5A flows through an electrolyte for 3 hours and 1.8g of a substance is deposited, what is the mass of the substance that will be deposited if a current of 4A flows through it for 4.8 hours?
A2.4g
B3.2g
C4.6g
D4.8g
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Question 33
jamb 2013

Induced emfs are best explained using

AOhm's law
BFaraday's law
CColomb's law
DLenz's law
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Question 34
jamb 2013

To convert a galvanometer to a voltmeter, a

Ahigh resistance is connected to it in series
Bhigh resistance is connected to it in parallel
Clow resistance is connected to it in parallel
Dlow resistance is connected to it in series
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Question 35
jamb 2013

When a charge moves through an electric circuit in the direction of an electric force, it

Agains both potential and kinetic energy
Bgains potential energy and lose kinetic energy
Closes potential energy and gains kinetic energy
Dloses both potential and kinetic energy
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Question 36
jamb 2013
An electric device is rated 2000W, 250V. Calculate the maximum current it can take
A9A
B8A
C7A
D6A
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Question 37
jamb 2013
A house has ten 40W and five 100W bulbs. How much will it cost the owner of the house to keep them lit for 10 hours if the cost of a unit is 5N?
AN90
BN50
CN45
DN5
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Question 38
jamb 2013
Which of the following obeys ohms laws?
Aelectroytes
Bmetals
Cdiode
Dglass
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Question 39
jamb 2013
A cell of emf 1.5V is connected in series with a 1Ω resistor and a current of 0.3A flows through the resistor. Find the internal resistance of the cell
A4.0Ω
B3.0Ω
C1.5Ω
D1.0Ω
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Question 40
jamb 2013
Capacitors are used in the induction coil to
Acontrol circuits
Bprevent distortion of electric fields
Cprevent electric sparks
Ddissipate energy
View Explanation & Discuss
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