PHYSICS 2024 UTME PAST QUESTION

1. A bifocal lens can be used to correct which type of defeat?

A. Shortsightedness
B. Long sightedness
C. Presbyopia
D. Astigmatism

2. A car travels 8 km due north then 5 km at 60o east of north. What is the displacement from the starting point

A. 13.21km
B. 11.36km
C. 8.32km
D. 10.44km

3. An objects is placed 10m in front of a plane mirror. If it is moved 8m further away from the mirror, what will be the new image distance from the object

A. 8m
B. 10m
C. 18m
D. 36m

4. The device used to measure the angle of dip is

A. Dip protractor
B. Dip circle
C. Compass needle
D. Sextant

5. What is the final volume of a gas with an initial volume of 546cm3 at 0oC, if the temperature drops to -100oC

A. 364cm3
B. 436 cm3
C. 862 cm3
D. 346 cm3

6. Frictional force is an advantage in which of the following situation

A. Stopping a car suddenly
B. Holding an object firmly
C. Sliding down a slide
D. Walking on a slippery floor

7. Which of these material has a very large gap

A. Copper (cu)
B. Silicon (Si)
C. Diamond (C)
D. Graphite (C)

8. What is the flux density of a magnetic field whose flux is 1500uwb and a conducting surface area of 0.5m2

A. 750uT
B. 30uT
C. 300uT
D. 3000uT

9. A body is pulled on a smooth horizontal surface with a rope 30o to the vertical. If the effective force pulling the body along the horizontal surface is 15N, calculate the tension of the rope

A. 17.3N
B. 20.0N
C. 30.0N
D. 13.0N

10. A spherical metal ball of radius 1 cm falls with a steady velocity of 2m/s down a viscous liquid in a container. If the viscous force of the liquid is 0.02N, at temperature room, calculate the coefficient of viscosity of the liquid (π=3.142)

A. 0.021 pa. S
B. 0.053pa. S
C. 0.010 paS
D. 0.002 Pas

11. If the same quantity of heat is supplied to substance P and Q and P has a temperature rise twice that of Q and Q has a mass that is half of the mass of P. find the ratio of the specific heat capacity of P to that of Q

A. 1:4
B. 4:1
C. 1:2
D. 2:1

12. If a virtual image appears larger than the objects and is formed on the same side as the object, the possible mirror\ less is

A. Concave lens
B. Convex lens
C. Concave mirror
D. Convex mirror

13. Calculate the energy stored in an inductor of inductance 10mH when current of 8A flows through.

A. 6.4×10-3J
B. 6.4×10-1J
C. 3.2×10-2J
D. 3.2×10-2J

14. The displacement of a particle is given as s=2x3+5x–4, find the equation for the velocity.

A. 6x2+5x
B. 6x3+5
C. 2x3+5x-4
D. 6x3+5x-4

15. The volume of a gas at 250 is said to be doubled at

A. 556K
B. 596K
C. 273K
D. 334K

16. To prevent electric appliances from damage, all but one of these is commonly used.

A. Fuse
B. Surge protector
C. Overload protectors and relays
D. Switch

17. Pascal law of pressure transmissibility is applicable to which of these devices

A. Hydraulic lift
B. Siphon
C. Hydrometer
D. Hygrometer

18. How long does it takes a 7.50W rated filament to converts 0.01 kg of water at 100oC to steam.[specific latent heat of vapor of steam is 2.20×106 Jkg-1]

A. 60.20 min
B. 29.33 min
C. 48.89 min
D. 52.25 min

19. For two traveling waves to forms a standing waves, the wave must have the same I. Frequency II. Wavelength III. Amplitude IV. Directions.

A. I and II
B. I and III
C. I,II and III
D. I,II,III and IV

20. If the mass of an objects attached to the springs of a simple harmonic oscillator is doubled , what is the ratio of the new period to the old one

A. 1/√2
B. /√2
C. 2
D. 1/2!

21. A uniform solid cube materials of sides 10cm has a mass of 700g. what percentage of its volume will be submerged in water[relative density of water is 1g/cm3]

A. 50%
B. 60%
C. 70%
D. 80%

22. The energy transfer process that is most clearly associated with a temperature differences is

A. Convection
B. Radiation
C. Conduction
D. Convection and radiation

23. The flow a blood in human body based on the heat transfer process known as

A. Heat convection
B. Heat conduction
C. Heat radiation
D. Heat evaporation

24. The amount of energy per unit mass that must be transferred as heat when a substance completely undergoes a phase changed is described as

A. Heat of vaporization
B. Heat of fusion
C. Heat of sublimation
D. Heat of transformation

25. Which of the following statement is NOT TRUE

A. Lying on a bed of nail is more is more comfortable than sitting on the same bed
B. An ideal fluid has internal friction force between its adjacent layer
C. When a fluid is at rest in a container, all portion of the fluid must be in static equilibrium with respect to the observe
D. A changed in pressure applied to an enclosed fluid is transmitted to every point of the fluid and to the wall of the container.

26. The function of a moderator in a nuclear reactor is to

A. Slow down high energy neutrons
B. Increase the chain reaction
C. Moderate the number nuclei available for the chain reaction
D. Increase the number of fissionable nuclei

27. Which of the following statement is correct I. A freely suspended magnet always aligns in north to south direction II. The magnetic line of force due to a bar magnet cannot intersect at all III. In Fleming left hand rules, the middle finger represent the direction of magnetic field

A. I only
B. II only
C. I and II only
D. I,II and III only

28. The magnetic flux in a coil changes from 20×10-1wb to 12×10-1wb in 0.2s calculate the value of the induced e.m.f.in the coil

A. 0.4V
B. 0.04V
C. 4V
D. 40V

29. A 1.60×10-19C ion is accelerated from rest through a potential difference of 0.7kV to speed of 8.5×104m/s. calculate the mass of these ion.

A. 1.67×1027kg
B. 9.11×10-31kg
C. 3.32×10-26kg
D. 4.84×10-20kg

30. Which of the following circuit exhibits maximum power dissipation

A. Pure inductive circuit
B. Pure capacitive circuit
C. Pure resistive circuit
D. Combined capacitive circuit

31. An object is placed at 20cm in front of a concave mirror produce a three fold magnitude real image. Obtain the focal length of the mirror

A. 15cm
B. 6.6cm
C. 7.5cm
D. 10cm

32. Which of the following is not as a consequence or application of the phenomenon of the total internal reflection

A. Brilliance of the diamond
B. Working of the optical fibre
C. Mirage on a hot summer day
D. Difference between real and apparent depth

33. A hypermetropic person with near point 0.7m wears a spectacle of power 2.5D, the new near points is now

A. 0.26m
B. 0.75m
C. 0.86m
D. 0.17m

Which of the following has the largest number of free electrons

A. Pure semiconductor
B. Impure semiconductor
C. Insulator
D. conductor

35. In a PN junction diode

A. The current in the forward biased condition is generally very small
B. The current in the reversed biased condition is generally very high
C. The current in the reversed biased is generally very small
D. The forward biased current is very small in comparison to reversed biased current

36. In photo electricity, the stopping potential of a fast moving photoelectrons is I. independent of frequency of incident photon II. Independent of wave length of the incident photon III. Independent of the intensity of incident photon Which of the statement above is or are true

A. I only
B. II only
C. III only
D. I and II only

37. A string of mass 2500g and length 20m is under a tension of 2×102 N. if it I struck at the one end and produce a disturbance will reach the other end in

A. 1.0 s
B. 1.5s
C. 2.0s
D. 3.2s

A man voice is usually different from a woman voice mainly due to difference in their

A. Pitch
B. Quality
C. Loudness
D. Wave length

39. Railway line , 25 m long, are being laid when the temperature is 15oC. Gaps of 1.8cm are being left between them. At which temperature will they touch each other given that its coefficient of linear expansivity is 1.2×10-5/oC.

A. 55oC
B. 50oC
C. 75oC
D. 110oC

40. The escape velocity of a body I. varies directly as its mass II. Varies inversely as its mass III. Varies directly as the square root of its mass IV. Does not depend on its mass. Which of these statement is true

A. I only
B. II only
C. III only
D. IV only