Question Library
Browse, filter, and study verified past examination questions with step-by-step mathematical reasoning.
Searching 18,000+ Questions...
Sifting topics, KaTeX formulas & verified solutions
Showing 17431–17445 of 29821 verified questions
Sort by:
Physics
UTME / JAMB 2002
Reflection, Refraction & Dispersion of Light
Solution
A coin place below a rectangular glass block of thickness 9cm and refractive index 1.5 is viewed vertically above the block. The apparent displacement of the coin is
A
3 cm
B
5 cm
C
6 cm
D
8 cm
medium Difficulty
Verified Correct Answer: Option A
Physical Principles & Numerical Solution
Real depth = thickness of the glass block = 9cm.
Refractive index of the glass material = 1.5
But Refractive index = Real depth/Apparent depth
=> 1.5 = 9/Apparent depth
therefore Apparent depth = 9/1.5 = 6cm.
therefore Apparent displacement of the Coin = 9.6
= 3cm
Source: Myschool Past Questions Archive (Record #9678)
Physics
UTME / JAMB 2002
Gas Laws & Heat Transfer
Solution
The radiator of a motor car is cooled by
A
radiation
B
conduction
C
convection
D
radiation and conduction
medium Difficulty
Verified Correct Answer: Option C
Physical Principles & Numerical Solution
The function of the radiator of a motor car is to "collect" heat from the circulating water and radiate some out, but it is itself cooled by the fan adjacent to it. whose function is primarily based on convection
Source: Myschool Past Questions Archive (Record #9679)
Physics
UTME / JAMB 2002
Gas Laws & Heat Transfer
Solution
I. Temperature.
II. Density of air molecules
III. Pressure
IV. Pitch
Which of the above will affect the velocity of sound in the air
A
I and II only
B
II and IV only
C
I,II and IV only
D
I,II,III nad IV
medium Difficulty
Verified Correct Answer: Option A
Physical Principles & Numerical Solution
Air pressure has no effect on speed of sound in an ideal gas because pressure and density both contribute to sound velocity equally, the two effects cancel each other out
Source: Myschool Past Questions Archive (Record #9680)
Physics
UTME / JAMB 2002
Waves, Sound & Vibrations
Solution
Which of the following is a characteristics of stationary waves?
A
They are formed by two identical waves travelling in opposite directions
B
they can be transverse or longitudinal
C
The distance between two successive nodes is one wavelenght
D
The antinode is a point of minimum displacement
medium Difficulty
Verified Correct Answer: Option A
Physical Principles & Numerical Solution
They are produced by the superposition of two progressive identical waves travelling in opposite directions
Source: Myschool Past Questions Archive (Record #9681)
Physics
UTME / JAMB 2002
Reflection, Refraction & Dispersion of Light
To produce an enlarged and erect image with a concave mirror,the object must be positioned
A
at the principal focus
B
beyond the centre of curvature
C
between the principal focus and the centre of the curvature
D
between the principal focus and the pole
medium Difficulty
Verified Correct Answer: Option D
Physical Principles & Numerical Solution
No expanded working has been attached for this question yet. The verified answer is Option D.
Source: Myschool Past Questions Archive (Record #9711)
Physics
UTME / JAMB 2002
Waves, Sound & Vibrations
Solution
the property that is propagated in a traveling wave is
A
frequency
B
amplitude
C
energy
D
wave lenght
medium Difficulty
Verified Correct Answer: Option C
Physical Principles & Numerical Solution
In a traveling wave, energy is what is propagated (transferred) from one point to another through the medium. Frequency, amplitude, and wavelength remain constant (in a uniform medium) but are not the quantity being "carried along" the wave.
Source: Myschool Past Questions Archive (Record #9712)
Physics
UTME / JAMB 2002
Lenses & Optical Instruments
Which of the following eye defects can be corrected using a cylindrical lens.
A
myopia
B
Astigmatism
C
Presbyopia
D
Chromatic abiration
medium Difficulty
Verified Correct Answer: Option B
Physical Principles & Numerical Solution
No expanded working has been attached for this question yet. The verified answer is Option B.
Source: Myschool Past Questions Archive (Record #9717)
Physics
UTME / JAMB 2002
Current Electricity & Electric Circuits
The time rate of loss of heat by a body is proportional to the
A
difference in temprature between the body and its surroundings
B
temperature of its surroundings
C
ratio of the temperature of the body to that of its surroundings
D
temperature of the body
medium Difficulty
Verified Correct Answer: Option A
Physical Principles & Numerical Solution
No expanded working has been attached for this question yet. The verified answer is Option A.
Source: Myschool Past Questions Archive (Record #9718)
Physics
UTME / JAMB 2002
Waves, Sound & Vibrations
Solution
If tension is maintained on a stretched string of length 0.6m, such that its fundamental frequency of 220Hz is excited, determine the velocity of the transverse wave in the string.
A
528 ms-1
B
264 ms-1
C
132 ms-1
D
66 ms-1
medium Difficulty
Verified Correct Answer: Option B
Physical Principles & Numerical Solution
in a vibrating string the fundamental frequency is given by fo = v/2L
therefore velocity = 2L x f.
= 2 x 0.6 x 220
= 264 m/s.
Source: Myschool Past Questions Archive (Record #9739)
Physics
UTME / JAMB 2002
Reflection, Refraction & Dispersion of Light
Solution
A concave mirror of radius of curvature 40 cm forms a real image twice as large as the object.
the object distance is
A
10 cm
B
30 cm
C
40 cm
D
60 cm
medium Difficulty
Verified Correct Answer: Option B
Physical Principles & Numerical Solution
if r = 40 cm , then f = r/2 = 40/2 = 20 cm
then for a real image by a concave mirror,
magnification M = f/u-f => 2 = 20/U-20
therefore 2(u-20) = 20
2u - 40 = 20
2u = 40 + 20
2u = 60/2 = 30 cm
Source: Myschool Past Questions Archive (Record #9740)
Physics
UTME / JAMB 2002
Elasticity, Density, Pressure & Fluids
Solution
water is a poor thermometric liquid because it
A
is opaque
B
is a poor conductor
C
wets glass
D
has low vapour pressure
medium Difficulty
Verified Correct Answer: Option C
Physical Principles & Numerical Solution
Wet glass: Water's ability to adhere to the glass can cause inaccuracies in readings due to meniscus formation and inconsistent surface tension.
Source: Myschool Past Questions Archive (Record #9752)
Physics
UTME / JAMB 2002
Reflection, Refraction & Dispersion of Light
Solution
a ray of light which strikes a glass slab from air at normal incidence passes through the slab
A
undeviated and undisplaced at a lower speed
B
deviated and undisplaced at a lower speed
C
deviated and displaced at a lower speed
D
undeviated and displaced at a faster speed
medium Difficulty
Verified Correct Answer: Option A
Physical Principles & Numerical Solution
The angle of refraction will be zero as the angle of incidence is zero in this case. This is a rule, that whenever a ray strikes perpendicularly or normally to a surface, no refraction will take place and hence the ray will pass through without deviating from its path.
Source: Myschool Past Questions Archive (Record #9753)
Physics
UTME / JAMB 2002
Calorimetry, Latent Heat & Change of State
Solution
blowing air over a liquid aids evaporation by
A
increasing its surface area
B
decreasing its vapour pressure
C
increasing its temperature
D
decreasing its density
medium Difficulty
Verified Correct Answer: Option B
Physical Principles & Numerical Solution
if you blow dry air over the glass you blow away this extra water vapor, thereby decreasing the amount of water vapor entering the glass.
Source: Myschool Past Questions Archive (Record #9755)
Physics
UTME / JAMB 2002
Waves, Sound & Vibrations
The phenomenon that makes sound persist when its source has been removed is known as
A
acoustic vibration
B
rarefaction
C
echo
D
reverberation
medium Difficulty
Verified Correct Answer: Option D
Physical Principles & Numerical Solution
No expanded working has been attached for this question yet. The verified answer is Option D.
Source: Myschool Past Questions Archive (Record #9791)
Physics
UTME / JAMB 2002
Gas Laws & Heat Transfer
Solution
the pressure of 3 moles of an ideal gas at a temperature of 27°C having a volume of 10-3m3 is
A
2.49 x 105-2
B
7.47 x 105-2
C
2.49 x 106-2
D
7.47 x 106-2
medium Difficulty
Verified Correct Answer: Option D
Physical Principles & Numerical Solution
From the relation PV = nRT
V = 10-33; n = 3 moles; T = 27 + 273 = 300k
R = 8.3 j mol-1 K-1
=> P = nRT/V = 3 X 8.3 X 300/10-3 = 7.47 X 106 Nm-2
Source: Myschool Past Questions Archive (Record #9792)