Jamb Physics 2012 Past Questions and Answers

Question 81:

• JAMB 2012

Which of the following consists entirely of vector quantities?

A. Velocity, magnetic fulx and reaction
B. Tension, magnetic flux and mass
C. Displacement, impulse and power
D. Work, pressure and moment

Question 82:

• JAMB 2012

Ice cubes are added to a glass of warm water. The glass and water are cooled by

A. Conduction only
B. Convection only
C. Conduction and convection
D. Convection and radiation

Question 83:

• JAMB 2012

A ray of light strikes a plane mirror at an angle of incidence of 35°. If the mirror is rotated through 10°, through what angle is the reflected ray rotated?

A. 70°
B. 45°
C. 25°
D. 20°

Question 84:

• JAMB 2012

The terrestrial telescope has one extra lens more than the astronomical telescope. The extra lens is for

A. Improving the sharpness
B. Creating an inverted image
C. Magnification of the image
D. Erection of the image

Question 85:

• JAMB 2012

The driving mirror of a car has a radius of curvature of 1m. A vehicle behind the car is 4m from the mirror. Find the image distance behind the mirror.

A. 8/7
B. 4/9
C. 9/2
D. 4/7