Give reasons.

Q20. Give reasons

  1. Concave mirror is a converging mirror.
    Ans. Because a parallel beam of light falling on it converges at a point after reflection.
  2. Convex mirror is a diverging mirror.
    Ans. Because a parallel beam of light falling on it appears to diverge from a point after reflection.
  3. Concave mirror has a real focus.                                             Ans. Because the light rays after reflection from a concave mirror actually converge at the focus.
  4. Convex mirror has a Virtual Focus.
    Ans. Because the light rays after reflection from a convex mirror appears to come from the focus.

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