(A) bright ()
(B) dark for large wavelength (X)
(C) dark (X)
(D) bright for large wavelength (X)
Answers: Central spot of Newtons rings bright.
(A) bright ()
(B) dark for large wavelength (X)
(C) dark (X)
(D) bright for large wavelength (X)
Answers: Central spot of Newtons rings bright.
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