Jamb Physics 2018 Past Questions and Answers

Question 71:

• JAMB 2018

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

Question 72:

• JAMB 2018

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\(^o\)

Question 73:

• JAMB 2018

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

A. Conduction
B. Convection
C. Expansion
D. Radiation

Question 74:

• JAMB 2018

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

A. Capillary
B. Surface
C. Viscosity
D. Cohesion

Question 75:

• JAMB 2018

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