Jamb Physics 2016 Past Questions and Answers

Question 6:

• JAMB 2016

I.Chemical II.Sound III.Electricity
Which of the above forms of energy can directly be converted to light energy?

A. I and II only
B. II and III only
C. I, II and III
D. I and III only

Question 7:

• JAMB 2016

If the distance between the object and the pinhole of a pinhole camera is reduced by half the size of the image of the object

A. Is quadrupled
B. Is halved
C. Remains the same
D. Is double

Question 8:

• JAMB 2016

An object is placed 15cm in front of a plane mirror. If the mirror is moved further 5cm away from the object and the image is

A. 80cm
B. 40cm
C. 50cm
D. 70cm

Question 9:

• JAMB 2016

Which of the following statements is correct about a machine?

A. Efficiency of a machine is always greater than I
B. Efficiency decreases with an increase in friction
C. Velocity ratio depends on friction
D. Mechanical advantage increases with an increase in friction

Question 10:

• JAMB 2016

The instrument used to view stars is the

A. Prism binoculars
B. Telescope
C. Film projector
D. Microscope