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Physics
UTME / JAMB 2016
Atomic, Quantum, Nuclear Physics & Electronics
Semiconductor is a class of solid whose conductivity increases with an increase in
A
Pressure
B
Temperature
C
Current
D
Voltage
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 #44688)
Physics
UTME / JAMB 2016
Current Electricity & Electric Circuits
Which of the following statements is NOT correct?
A
Brownian motion is an evidence of the particle nature of matter
B
Atoms combine to form molecules
C
The molecules of matter are not in constant motion
D
matter is made up of molecules
medium Difficulty
Verified Correct Answer: Option C
Physical Principles & Numerical Solution
No expanded working has been attached for this question yet. The verified answer is Option C.
Source: Myschool Past Questions Archive (Record #44690)
Physics
UTME / JAMB 2016
Work, Energy, Power & Simple Machines
A dynamo primarily converts
A
Mechanical energy into electrical energy
B
Electrical energy into kinetic energy
C
Potential energy into kinetic energy
D
Kinetic energy into potential energy
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 #44692)
Physics
UTME / JAMB 2016
Calorimetry, Latent Heat & Change of State
A saturated vapour pressure of a liquid increases when the
A
Temperature of a liquid increases
B
Volume of the liquid increases
C
Volume of the liquid decreases
D
Temperature of the liquid decreases
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 #44694)
Physics
UTME / JAMB 2016
Current Electricity & Electric Circuits
Solution
What force has to be exerted on a mass 60kg to give it an acceleration of 10ms-2 vertically upwards?
[g = 10ms-2
A
300N
B
600N
C
1200N
D
400N
medium Difficulty
Verified Correct Answer: Option C
Physical Principles & Numerical Solution
F = Ma + mg = 60 x 10 x 60 x 10 = 1200N
Source: Myschool Past Questions Archive (Record #44696)
Physics
UTME / JAMB 2016
Equilibrium of Forces, Moments & Flotation
Solution
A metre rule is pivoted at its mid-point with a vertical force of 10N hanging from the distance 30cm from the mid-point. At what distance must a 15N force hang to balance the ruler horizontally?
A
30cm
B
10cm
C
20cm
D
25m
medium Difficulty
Verified Correct Answer: Option C
Physical Principles & Numerical Solution
Clockwise moment = Anti-clockwise moment
10 x 30 = 15 x X
X = 20cm
Source: Myschool Past Questions Archive (Record #44698)
Physics
UTME / JAMB 2016
Linear Motion, Projectiles & Kinematics
Solution
A projectile is fired from the ground level with a velocity of 300ms-1 at an angle of a 30o to the horizontal.
Calculate the time taken to reach the maximum height?
[g = 10ms-2]
A
30s
B
20s
C
25s
D
15s
medium Difficulty
Verified Correct Answer: Option D
Physical Principles & Numerical Solution
The total time of flight is given as
\(T = \frac{2usin\theta}{g}\)
Hence, time to maximum height is half of the total time of flight,
t = \(\frac{u sin\theta}{g}\)
= \(\frac{300 \text {sin} 30}{10}\) = 15s
Source: Myschool Past Questions Archive (Record #44702)
Physics
UTME / JAMB 2016
Linear Motion, Projectiles & Kinematics
Solution
A train with an initial velocity of 20ms-1 is subjected to a uniform deceleration of 2ms-2. The time required to bring the train to a complete halt is
A
40s
B
10s
C
20s
D
5s
medium Difficulty
Verified Correct Answer: Option B
Physical Principles & Numerical Solution
t = \(\frac{v - u}{a}\) = \(\frac{20 - 0}{2}\)
= 10s
Source: Myschool Past Questions Archive (Record #44706)
Physics
UTME / JAMB 2016
Waves, Sound & Vibrations
Which of the following electromagnetic waves has the shortest wavelength?
A
Visible Light
B
Ultraviolet rays
C
Infrared rays
D
Gamma rays
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 #44707)
Physics
UTME / JAMB 2016
Atomic, Quantum, Nuclear Physics & Electronics
Solution
A radioactive isotope has a decay constant of 10\(^{-6}\)s\(^{-1}\). Calculate its half-life.
A
5.93 x 106s
B
6.93 x 105s
C
6.93 x 109s
D
5.93 x 107s
medium Difficulty
Verified Correct Answer: Option B
Physical Principles & Numerical Solution
t\(_{1/2}\) = \(\frac{0.693}{\gamma}\) = \(\frac{0.693}{10^{-6}}\)
= 6.93 x 10\(^5\)
Source: Myschool Past Questions Archive (Record #44708)
Physics
UTME / JAMB 2016
Atomic, Quantum, Nuclear Physics & Electronics
Which of the following waves is both transverse and mechanical?
A
Water waves
B
Radio waves
C
Sound waves
D
X-rays
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 #44709)
Physics
UTME / JAMB 2016
Gas Laws & Heat Transfer
Solution
Calculate the temperature of 6 moles of an ideal gas at a pressure of 7.6 x 106Nm-2 with a volume of 10-3m3.
[R = 8.3jmol-1K-1]
A
201oC
B
126oC
C
153oC
D
185oC
medium Difficulty
Verified Correct Answer: Option C
Physical Principles & Numerical Solution
T = \(\frac{PV}{nR}\) = \(\frac{7.6 x 10^6 x 10^-3}{6 x 8.3}\)
= 153oC
Source: Myschool Past Questions Archive (Record #44710)
Physics
UTME / JAMB 2016
Equilibrium of Forces, Moments & Flotation
The relative density of a liquid is the ratio of the
A
Mass of water to the mass of an equal volume of liquid
B
Upthrust in the liquid to the upthrust in water
C
Density of water to the density of the liquid
D
Upthrust in water to the upthrust in the liquid
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 #44711)
Physics
UTME / JAMB 2016
Current Electricity & Electric Circuits
What will happen to the pressure of a gas if its temperature is reduced to -273oC?
A
It will decrease
B
it will drop to zero
C
It will increase
D
It will remain constant
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 #44712)
Physics
UTME / JAMB 2016
Current Electricity & Electric Circuits
Solution
Which of the following does Not use magnetic effect of current to function?
A
Lead acid accumulator
B
An electric bell
C
A moving coil galvanometer
D
A telephone receiver
medium Difficulty
Verified Correct Answer: Option A
Physical Principles & Numerical Solution
Lead acid accumulator does not use the magnet effect of current. It is an electrochemical cell that produces current as a result of a chemical reaction
Source: Myschool Past Questions Archive (Record #44713)