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*COMPILED QUESTIONS FROM JAMB EXAMINATION DAY 1 (PHYSICS)‼️🔥🤝*
QUESTIONS GATHERED SO FAR IN PHYSICS
_These are questions compiled from candidates who wrote their examination on the 24th of April_
_These sets of questions have a high likelihood of having similar appearances in latter exams_
(*OVER 50 QUESTIONS*)

1. What is the primary purpose of the depletion region in a p-n junction diode?
A) To increase the diode's current-carrying capacity
B) To reduce the diode's reverse saturation current
C) To create a potential barrier for majority charge carriers
D) To enhance the diode's switching speed
Answer: C

2. Which of the following quantities is a scalar?
A) Velocity
B) Acceleration
C) Displacement
D) Temperature
"Answer: D

3. What is the implication of the Heisenberg Uncertainty Principle for a particle's position and momentum?

A) Both position and momentum can be precisely known simultaneously.
B) The more precisely you know a particle's position, the less precisely you can know its momentum.
C) The more precisely you know a particle's momentum, the more precisely you can know its position.
D) Position and momentum are completely unrelated.
Answer: B

4. What is the phenomenon where a particle passes through a potential energy barrier even if it doesn't have enough energy to classically overcome the barrier?
A) Tunneling
B) Reflection
C) Refraction
D) Diffraction
Answer: A

5. A particle of mass m is attached to a massless spring with spring constant k. The particle is displaced by a distance A from its equilibrium position and then released from rest. What is the speed of the particle when it is at a distance A/2 from its equilibrium position?
A) √(3kA^2/4m)
B) √(kA^2/2m)
C) √(3kA^2/m)
D) √(kA^2/4m)

Answer: A

6. What is force?
A) Joule
B) Newton
C) Pascal
D) Watt
"Answer: B

7. Pressure is defined as:
A) Force per unit area
B) Mass per unit volume
C) Energy per unit time
D) Work done per unit distance
Answer: A

8. A 2 kg block is attached to a spring with a spring constant of 100 N/m. If the block is displaced by 0.2 m from its equilibrium position, what is the magnitude of the restoring force exerted by the spring?
A) 10 N
B) 20 N
C) 40 N
D) 50 N
Answer: B

9. A car accelerates from rest to 20 m/s in What is its acceleration?
A) 2
B) 4 m/s²
C)5 m/s?
D) 10 m/s²:
Answer: B

10. A physical pendulum consists of a uniform rod of length L and mass M. What is the period of small oscillations of the pendulum?
A) 2π √(L/3g)
B) 2π √(2L/3g)
C) 2π √(L/g)
D) 2π √(3L/2g)
Answer: B

11. A 10 μF capacitor is charged to 100 V and then discharged through a 1000 Ω resistor. What is the time constant of the circuit?

A) 0.01 s
B) 0.1 s
C) 1 s
D) 10 s
Answer: A

12. A body is said to be in motion if it:
A) Is at rest
B) Changes position with time
C) Remains in the same position
D) Has constant velocity
Answer: B

13. The law of conservation of energy states that:
A) Energy can be created and destroyed
B) The total energy in an isolated system remains constant
C) Energy changes from one form to another
D) All of the above
Answer:B

14. What is the value of acceleration the surface of the Earth?
A) 9.8 m/s?
B) 10 m/s
c) 9.81 m/s
D) 8.9 m/s
Answer: C

15. Which of the following statements about waves is true?
A) Waves cannot transfer energy
B) Waves require a medium to travel C) All waves are transverse
D) Waves can be seen when they pass through
Answer: B

16. What is the primary function of a fuse in an electric circuit?
A) To increase voltage
B) To decrease resistance
C) To protect against overcurrent
D) To filter out AC
Answer: C

17. A 10 kg block is lifted vertically upwards by 2 m. What is the work done? (g = 10 m/s^2)
A) 100 J
B) 200 J
C) 196 J
D) 400 J
Answer: B

18. What is the principle behind the operation of a transformer?
A) Electromagnetic induction
B) Electromagnetic radiation
C) Electrostatic induction
D) Magnetic resonance
Answer: A

19. A car travels 200 km in 4 hours. What is its average speed?
A) 25 km/h
B) 50 km/h
C) 75 km/h
D) 100 km/h
Answer: B

20. What is the term for the opposition to the flow of electric current?
A) Resistance
B) Conductance
C) Inductance
D) Capacitance
Answer: A

21. A 5 kg block is moving with a velocity of 4 m/s. What is its kinetic energy?
A) 20 J
B) 40 J
C) 80 J
D) 100 J
Answer: B

22. What is the phenomenon where a wave changes direction as it passes from one medium to another?
A) Reflection
B) Refraction
C) Diffraction
D) Interference
Answer: B

23. A 1000 kg car accelerates from rest to 20 m/s in 10 s. What is its average power?
A) 1000 W
B) 2000 W
C) 4000 W
D) 8000 W
Answer: B

24. What is the term for the energy stored in a stretched or compressed spring?
A) Kinetic energy
B) Potential energy
C) Thermal energy
D) Electrical energy
Answer: B

25. A wave has a frequency of 50 Hz and a wavelength of 2 m. What is its speed?
A) 25 m/s
B) 50 m/s
C) 100 m/s
D) 200 m/s
Answer: C

26. What is the principle behind the operation of a generator?
A) Electromagnetic induction
B) Electromagnetic radiation
C) Electrostatic induction
D) Magnetic resonance
Answer: A

27. A 2 μF capacitor is charged to 100 V. What is the energy stored?
A) 0.01 J
B) 0.1 J
C) 1 J
D) 10 J
Answer: A

28. What is the term for the force that opposes motion between two surfaces in contact?
A) Friction
B) Gravity
C) Normal force
D) Tension
Answer: A

29. A particle moves with an initial velocity of 5 m/s and accelerates at 2 m/s^2 for 3 s. What is its final velocity?
A) 10 m/s
B) 11 m/s
C) 12 m/s
D) 15 m/s
Answer: B

30. What is the term for the ability of a material to return to its original shape after deformation?
A) Elasticity
B) Plasticity
C) Viscosity
D) Brittleness
Answer: A

31. A 10 Ω resistor carries a current of 2 A. What is the power dissipated?
A) 20 W
B) 40 W
C) 60 W
D) 80 W
Answer: B

32. What is the term for the minimum energy required to remove an electron from a material?
A) Work function
B) Ionization energy
C) Electron affinity
D) Binding energy
Answer: A

33. A block of mass 2 kg is attached to a spring with spring constant 100 N/m. What is its angular frequency?
A) 5 rad/s
B) 7 rad/s
C) 10 rad/s
D) 14 rad/s
Answer: B

34. What is the term for the spreading of waves around obstacles or through small openings?
A) Reflection
B) Refraction
C) Diffraction
D) Interference
Answer: C

35. A 5 A current flows through a 10 Ω resistor. What is the power dissipated?
A) 100 W
B) 250 W
C) 500 W
D) 1000 W
Answer: B

36. An object is in free fall when:
A) It is thrown upward
B) It is at rest
C) The only force acting on it is gravity
D) It moves down
Answer: C

37. What phenomenon explains why we see different colors in a rainbow?
A) Reflection
B) Refraction
C) Diffraction
D) Dispersion
Answer:D

38. *What is the kinetic energy of an object with a mass of 10 kg moving at a velocity of 5 m/s?
A) 25 Joules
B) 50 Joules
C) 100 Joules
D) 75 Joules
Answer: D

39. What is the formula for calculating gravitational potential energy?
A) PE = m
C) PE = Fd
B) PE = 1/2mv^2
D) PE = mv
Answer: A

40. The unit of electric charge is:
A) Volt
B) Coulomb
C) Ampere
D) Ohm
Answer: B

42. In simple harmonic motion, the acceleration of the object is:
A) Directly proportional to its displacement
B) Inversely
C) Constant
Answer:A

44. The phenomenon by which sound waves bend around obstacles is called:
A) Refraction
B) Reflection
C) Diffraction
D) Interference

46. What is the main source of energy for the Earth?
A) Electrical Energy
B) Solar energy
C) Wind energy
D) Nuclear energy
Answer: B

47. the process of converting a gas to solid is known as:**
A) Melting
B) Deposition
C) Freezing
D) Condensation
Answer:B

50. In a vacuum, all electromagnetic waves travel at:
A) Different speeds
B) Light speed
c) Sound speed
D) Varying speeds depending on wavelength
Answer: B

51. What type of lens is used to correct hyperopia (farsightedness)?
A) Concave lens
B) Convex lens
C) Plane lens
D) Cylindrical lens
Answer: B

*IMPORTANT INFORMATION ON JAMB EXAMINATION STARTING ON TOMORROW*

*UTME CBT HAS FOUR (4) BATCHES EACH DAY*

1st Batch, Will Commence By 7:00 am

2nd Batch, Will Commence By 9:00am

3rd Batch, Will Commence By 12:00pm

4th Batch, Will Commence By 3:00pm

*JAMB Comprises Four(4) Subjects*

(1). English = 60 questions in 40 minutes.

(2). 2nd Subject = 40 questions in 27 minutes

(3). 3rd Subject = 40 questions in 27 minutes

(4). 4th Subject = 40 questions in 26 minutes

A total of 180 questions and 2hours.

10 Questions will be from the JAMB recommended reading text.

Use an average 40 seconds to answer each question.

*JAMB 8 keyboard keys Features*

A - For option A
B - For option B
C - For option C
D - For option D
R - For Reverse Question
N - For Next Question
P - For the Previous Question
S - For Submit

Take note of these 8 Keyboard Keys Features as you might not be provided with a mouse on the examination day.

*PLS LET US GIVE THIS INFORMATION THE WIDEST CIRCULATION AS SOME OF OUR CHILDREN OR WARDS MIGHT NEED THEM*

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