Jamb Physics 2008 Past Questions and Answers

Question 26:

• JAMB 2008

An object placed at the bottom of a well full of clear water appears closer to the surface due to?

A. Diffraction
B. Reflection
C. Refraction
D. Polarization

Question 27:

• JAMB 2008

In the microscope, the eyepiece lens merely acts as?

A. An inverter
B. A refiner
C. A diminisher
D. A magnifier

Question 28:

• JAMB 2008

An observer with normal eyes views an object with magnifying glass of focal length 5 cm. the angular magnification is?
[least distance of distinct vision D = 25 cm]

A. -6
B. -5
C. 5
D. 6

Question 29:

• JAMB 2008

A short chain is sometimes attached to the back of a petrol tanker to?

A. Generate more friction
B. Ensure the balancing of the tanker
C. Caution the driver when overspeeding
D. Conduct excess charges to the car

Question 30:

• JAMB 2008

An electric generator has e.m.f. of 240 V and an internal resistance of 1Ω if the current supplied by the generatoris 20A when the terminal voltage is 220 V, find the ratio of the power supplied to the power dissipated?

A. 11:1
B. 1:11
C. 12:11
D. 11:12