NEET-XII-Physics

17: Light Waves

with Solutions - page 2
Qstn# ii-8 Prvs-QstnNext-Qstn
  • #8
    Which of the following sources provides the best monochromatic light?
    (a) A candle
    (b) A bulb
    (c) A mercury tube
    (d) A laser
    digAnsr:   d
    Ans : (d) A laser
    Among the given sources, laser is the best coherent source providing monochromatic light with constant phase difference.
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