JAMB 2026 TUTORIALS🤩 PHYSICS QUESTIONS These questions were asked Last Year and likely to repeat in 2026 JAMB.🔥 1. ML²T-³ A-¹ is the dimensional formula of A. Electric resistance B. Capacity C. Electric potential ✅ D. Specific resistance 2. Which one of the following is not a unit of electric potential ? A. JC-¹ B. V C. W ✅ D. NmC-¹ 3. When two identical bodies are in motion, the body with a higher velocity has___ A. Lower Kinetic Energy B. Higher Kinetic Energy ✅ C. No Kinetic Energy D. None of the options 4. Which of the following can be zero, when a particle is in motion for some time ? A. Distance B. Displacement ✅ C. Speed D. None of these 5. Flight of a rocket in the space is an example of----------- ? A. second law of motion B. third law of motion ✅ C. first law of motion D. law of gravitation. SHARE THIS POST✅️
This physics problem tests your understanding of fundamental physical laws and their applications. The step-by-step solution below breaks down the problem using relevant equations and physical reasoning.
ScanSolve AI Answer
Here are the verifications for the provided answers:
1. ML²T-³ A-¹ is the dimensional formula of
Explanation: Electric potential (V) is defined as work done per unit charge. Work has dimensions of $ML^2T^{-2}$ and charge has dimensions of $AT$. Therefore, the dimensions of electric potential are $\frac{ML^2T^{-2}}{AT} = ML^2T^{-3}A^{-1}$.
Answer: ✅ Correct. The dimensional formula $ML^2T^{-3}A^{-1}$ corresponds to C. Electric potential.
2. Which one of the following is not a unit of electric potential ?
Explanation: Electric potential is measured in Volts (V). One Volt is equal to one Joule per Coulomb ($JC^{-1}$). Since a Joule is a Newton-meter ($Nm$), electric potential can also be expressed as $NmC^{-1}$. Watt (W) is a unit of power, not electric potential.
Answer: ✅ Correct. C. W (Watt) is not a unit of electric potential.
3. When two identical bodies are in motion, the body with a higher velocity has___
Explanation: Kinetic energy ($KE$) is given by the formula $KE = \frac{1}{2}mv^2$. For identical bodies, the mass ($m$) is the same. Since kinetic energy is directly proportional to the square of the velocity ($v^2$), a higher velocity results in higher kinetic energy.
Answer: ✅ Correct. The body with a higher velocity has B. Higher Kinetic Energy.
4. Which of the following can be zero, when a particle is in motion for some time ?
Explanation:
Distance is the total path length covered and cannot be zero if the particle is in motion.
Displacement is the change in position from the starting point to the ending point. If a particle moves and returns to its original starting position, its displacement is zero.
Speed is the magnitude of velocity and must be non-zero if the particle is in motion.
Answer: ✅ Correct. B. Displacement can be zero.
5. Flight of a rocket in the space is an example of----------- ?
Explanation: A rocket operates based on Newton's Third Law of Motion. It expels hot gases downwards (action), and in response, an equal and opposite force propels the rocket upwards (reaction).
Answer: ✅ Correct. Flight of a rocket is an example of B. third law of motion.
