JAMB - Physics (2009 - No. 20)
I. Moon.
II. Sun.
III.street light.
IV. stars.
Which of these are natural sources of light?
II. Sun.
III.street light.
IV. stars.
Which of these are natural sources of light?
II, III, and IV only
I, II and III only
III and IV only
II and IV only
解释
The sun and stars are self luminous object.