Optical Instruments - Jamb Physics Past Questions and Answers

Question 16:

• JAMB 2000

What optical instrument can best be constructed with converging lenses of focal lengths 50cm and 5cm?

A. Compound microscope
B. Galileo's telescope
C. Terrestrial telescope
D. Astronomical telescope

Question 17:

• JAMB 2001

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 18:

• JAMB 2002

Which of the following eye defects can be corrected using a cylindrical lens.

A. Myopia
B. Astigmatism
C. Presbyopia
D. Chromatic abiration

Question 19:

• JAMB 2002

The eye controls the amount of light reaching the retina by adjusting the

A. Cornea
B. Iris
C. Retina
D. Optic nerve

Question 20:

• JAMB 2007

The instrument used by designers to obtain different color pattern is called?

A. Periscop
B. Sextant
C. Episcope
D. Kaleidoscope