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 411
jamb 2014
A quantity which requires magnitude and direction to be specified is
ATemperature
BDistance
CDisplacement
DMass
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Question 412
jamb 2014
What is the least possible error encountered when taking measurement with a meter rule?
A0.1mm
B1.0mm
C0.5mm
D0.2mm
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Question 413
jamb 2013
The bond between silicon and germanium is
Adative
Bcovalent bond
Ctrivalent
Dionic
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Question 414
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 415
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 416
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 417
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 418
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 419
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 420
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 421
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 422
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 423
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 424
jamb 2013
Which of the following obeys ohms laws?
Aelectroytes
Bmetals
Cdiode
Dglass
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Question 425
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 426
jamb 2013
Capacitors are used in the induction coil to
Acontrol circuits
Bprevent distortion of electric fields
Cprevent electric sparks
Ddissipate energy
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Question 427
jamb 2013
Calculate the force acting on an electron of charge 1.5 x 10-19C placed in an electric field of intensity 105Vm-1
A1.5x10-11N
B1.5x10-12N
C1.5x10-13N
D1.5x10-14N
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Question 428
jamb 2013

The angle of deviation of light of various colours passing through a triangular prism increases in the order

Ared → green → blue
Bgreen → violet → blue
Cblue → red → green
Dblue → green → red
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Question 429
jamb 2013
If the linear magnification of the objective and eyepiece convex lenses of a compound microscope are 4 and 7 respectively. Calculate the angular magnification of the microscope
A2
B3
C11
D28
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Question 430
jamb 2013

Total internal reflection will not occur when light travels from

Awater to air
Bwater into glass
Cglass to air
Dglass into water
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