Physics Past Questions | JAMB, WAEC, NECO and Post UTME Past Questions

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Question 4741

Which of the following is not a product of nuclear fusion?


A) X – ray

B) Y –ray

C) α – particles

D) neutron

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Question 4742

A room is heated by means of a charcoal fire, an occupants of the room standing away from the fire is warmed mainly by


A) Convection

B) Radiation

C) Conduction

D) Reflection

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Question 4743

For what values of F and θ will the forces shown in the diagram below be in equilibrium.


A) 60N and 60\(^o\)

B) 60N and 30\(^o\)

C) 20√3 N and 60\(^o\)

D) 20√3N and 30\(^o\)

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Question 4744

Which of the following phenomena cannot be explained by the molecular theory of matter?


A) Conduction

B) Convection

C) Expansion

D) Radiation

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Question 4745

The friction which exist between two layers of liquid in relative motion is called.


A) Capillary

B) Surface

C) Viscosity

D) Cohesion

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Question 4746

A particle of mass M initially at rest splits into two. If one of the particles of mass M1 moves with velocity V1 , the second particle moves with velocity


A) \(\frac{M1V1}{M-M1}\)

B) \(\frac{M1V1}{M1-M}\)

C) \(\frac{M1V1}{M}\)

D) \(\frac{MV}{M-M1}\)

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Question 4747

To keep a vehicle moving at a constant speed V requires power P from the engine. The force provided by the engine is


A) \(\frac{P}{v}\)

B) (\(\frac{1}{2}\))V


D) \(\frac{P}{V^2}\)

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Question 4748

Which of the following is the dimension of pressure


A) ML\(^{−1}\)T\(^{−2}\)

B) MLT\(^{−2}\)

C) ML\(^{2}\)T\(^{3}\)

D) ML\(^{−3}\)

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Question 4749

Palm oil from a bottle flows out more easily after it has been heated because the


A) Molecules are given energy during the heating

B) Friction between oil layers is reduced

C) Oil molecules force each other out

D) Adhesion between the oil molecules and those of the bottle is increased

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Question 4750

A ball of mass 5.0kg hits a smooth vertical wall normally with a speed of 2ms\(^{-1}\). Determine the magnitude of the resulting impulse


A) 20.0kgms\(^{-1}\)

B) 10.0kgms\(^{-1}\)

C) 5.0kgms\(^{-1}\)

D) 2.5kgms\(^{-1}\)

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