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Physics
UTME / JAMB 2016
Waves and Optics
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
Modern Physics and Nuclear Physics
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
Waves and Optics
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
Mechanics and Properties of Matter
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
Mechanics and Properties of Matter
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
Mechanics and Properties of Matter
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
Electricity and Magnetism
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)
Physics
UTME / JAMB 2016
Heat Energy & Temperature
Vapour is said to be saturated on top of an enclosed liquid if _________
A
The rate of condensation is greater than that of vapourization
B
The rate of condensation is equal to that of vapourization
C
There is neither condensation nor vaporization of the liquid
D
The rate of condensation is less that that of vaporization
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 #44714)
Physics
UTME / JAMB 2016
Heat Energy & Temperature
Solution
A pool of water appears to be 1.00m deep when viewed vertically from above. What is the actual depth of the pool?
[Refractive index of water = 1.33]
A
13.300m
B
0.750m
C
1.013m
D
1.330m
medium Difficulty
Verified Correct Answer: Option D
Physical Principles & Numerical Solution
n = \(\frac{\text {Read depth}}{\text{Apparent depth}}\) = 1.33 = \(\frac{Rd}{1}\)
Rd = 1.33 x 1 = 1.330m
Source: Myschool Past Questions Archive (Record #44715)
Physics
UTME / JAMB 2016
Heat Energy & Temperature
Shadows and eclipse result from the
A
Reflection of light
B
Rectilinear propagation of light
C
Diffraction of light
D
Refraction of light
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 #44716)
Physics
UTME / JAMB 2016
Waves and Optics
Solution
Which of the following is obtained when a magenta is mixed with green colour?
A
Yellow
B
Blue
C
White
D
Red
medium Difficulty
Verified Correct Answer: Option C
Physical Principles & Numerical Solution
This refers to additive color mixing (mixing colored lights, as in stage lighting, screens, or physics experiments involving primary colors of light).
Source: Myschool Past Questions Archive (Record #44726)
Physics
UTME / JAMB 2016
Electricity and Magnetism
Solution
Which of the following instruments can be used to measure current in an a.c circuit?
A
Hot wire ammeter
B
Moving coil ammeter
C
Tangent galvanometer
D
Moving coil galvanometer
medium Difficulty
Verified Correct Answer: Option A
Physical Principles & Numerical Solution
A hot wire ammeter measures current by detecting the heating effect produced when current passes through a thin wire, with the amount of heat generated being directly proportional to the current flow.
Source: Myschool Past Questions Archive (Record #44727)
Physics
UTME / JAMB 2016
Waves and Optics
Which of the following statements about wave motion is correct?
A
Electromagnetic waves are transverse
B
Transverse waves do not require a medium for propagation
C
Longitudinal waves vibrate perpendicular to the direction of travel
D
All mechanical waves are longitudinal
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 #44728)
Physics
UTME / JAMB 2016
Mechanics and Properties of Matter
Solution
A manometer is an instrument used for measuring
A
Relative density of liquid
B
Pressure in liquids and gases
C
Humidity
D
Atmospheric pressure
medium Difficulty
Verified Correct Answer: Option B
Physical Principles & Numerical Solution
a manometer is used to measure pressure in liquids and gases. Manometer gauges measure the pressure of gases and vapors from atmospheric to about 1 Pa by balancing the force exerted by the gas or vapor against the weight of a column of liquid, usually mercury, water, or oil.
Source: Myschool Past Questions Archive (Record #44730)
Physics
UTME / JAMB 2016
Heat Energy & Temperature
Solution
A body which weighs 50N in air displaces 3.7kg of water when partially immersed in water. Calculate the upthrust on the body?
A
8.7N
B
37.0N
C
87.0N
D
13.0N
medium Difficulty
Verified Correct Answer: Option B
Physical Principles & Numerical Solution
Upthrust = Weight or water displaced
= 3.7 x 10 = 37N
Source: Myschool Past Questions Archive (Record #44732)