UTME 2024 Physics | Objective

Practice these randomly selected questions to test your readiness.

Question 1
What is the number of neutrons in the Uranium isotope \( { }^{238} \)\(_{92} \)X?
A. 92
B. 146
C. 238
D. 330
Question 2
The total capacitance of the circuit above is
A. \( 0.25 m F \)
B. 1.50 mF
C. \( 0.75 m F \)
D. 1.25 mF
Question 3
Isotopes are nuclei which have
A. the same number of neutrons and electrons
B. equal number of electrons and protons
C. the same atomic number but different number of neutrons
D. the same number of total particles.
Question 4
A 24 V potential difference is applied across a parallel combination of four 6-ohm resistors. The current in each resistor is
A. 1A
B. 4 A
C. 16 A
D. 18 A
Question 5
What is the apparent colour of a RED SHIRT when viewed in PURE green light?
A. Red
B. Green
C. Yellow
D. Black
Question 6
A man stands on a spring scale placed in a lift. The lift descends at constant velocity. As a result, the scale reads a weight
A. greater than the weight of the man
B. the same as the weight of the man
C. of zero
D. less than the weight of the man
Question 7
For which of the underlisted quantities is the derived unit \( M L^{2} T^{-2} \) correct? I. Moment of a force II. Work III. Acceleration
A. I only
B. II only
C. III only
D. I and II
Question 8
A man clapping his hands at regular intervals observes that the echo of a clap coincides with the next clap. If the reflecting cliff is 160 m away and the speed of sound is \( 320 \mathrm{~ms}^{-1} \), what is the frequency of the clapping?
A. \( 1 \mathrm{~Hz} \quad \)
B. \( 2 \mathrm{~Hz} \quad \)
C. 4 Hz
D. 8 Hz
Question 9
The angle between the magnetic meridian and the geographic meridian at a locality on the earth is the
A. longitude of the locality
B. angle of inclination at the locality
C. latitude of the locality
D. angle of declination of the locality.
Question 10
A charge of one coulomb liberates 0.0033 g of copper in an electrolytic process. How long will it take a current of 2A to liberate 1.98 g of copper in such a process?
A. 5 minutes
B. 30 minutes
C. 50 minutes
D. 60 minutes.
Question 11
Which of the following methods CANNOT be used to produce a steel magnet?
A. passing of an electric current through a solenoid
B. repeated stroking of the specimen with a magnet
C. repeated stroking of the specimen in opposite directions with two magnets
D. heating of the specimen.
Question 12
Which of the following components is NOT contained in a dry cell?
A. carbon rod
B. paste of magnesium dioxide
C. paste of ammonium chloride
D. copper rod
Question 13
A rod of length 10 cm is heated through \( 100^{\circ} \mathrm{C} \) and its final length is 10.26 cm. What is the co-efficient of linear expansion of the rod?
A. 0.026 per degree centigrade
B. 0.06026 per degree centigrade
C. 0.26 per degree centigrade
D. 1.0026 per degree
Question 14
The electromotive force obtained from a simple dynamo may be increased by
A. increasing the cross-sectional area of the coil
B. winding the coil on a soft-iron armature so as to decrease the magnetic flux through the coil
C. increasing the speed of rotation
D. making the field magnet longer
Question 15
The diagrams below depict the current induced in a coil as a result of the relative motion between it and a bar magnet. Which of the diagrams illustrates the direction of the induced current?

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