Jamb Physics 2006 Past Questions and Answers

Question 36:

• JAMB 2006

A submarine is observed to rise from a real depth off 80 m to 60 m in water. calculate the change in apparent depth.
[Refraction index of water (4)/3]

A. 45 m
B. 80 m
C. 15 m
D. 60 m

Question 37:

• JAMB 2006

Non-luminous object can be seen because they

A. Reflect light
B. Are near
C. Are polished
D. Emit light

Question 38:

• JAMB 2006

The wavelength of the first overtone of a note in a closed pipe of length 33 cm is?

A. 33 cm
B. 44 cm
C. 22 cm
D. 17 cm

Question 39:

• JAMB 2006

A person can focus objects when they lie beyond 75 cm from his eyes. The focal length of the lens required to reduce his least distance of distinct vision to 25 cm is?

A. 37.50 cm
B. 75.00 cm
C. 18.75
D. 25.00 cm

Question 40:

• JAMB 2006

If two charged plates are maintained at a potential difference of 3 kv, the work done in taking a charge of 600 µC across the field is?

A. 0.8 J
B. 1.8 J
C. 9.0 J
D. 18.0 J