A concave mirror can be used to produce a parallel beam of light if a...

PHYSICS
WAEC 2000

A concave mirror can be used to produce a parallel beam of light if a lighted bulb is placed

  • A. between its focus and the pole
  • B. at its focus
  • C. at its centre of curvature
  • D. between its focus and centre of curvature

Correct Answer: B. at its focus



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