- (A) bright fringes are wider than dark fringes
- (B) dark fringes are wider than bright fringe
- (C) both dark and bright fringes are of equal width
- (D) central fringes are brighter than the outer fringes
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- (A) alternate dark and bright fringes will be seen
- (B) coloured fringes will be seen
- (C) no interference fringes will be seen
- (D) impossible to predict
- (A) polarization
- (B) constructive interference
- (C) destructive interference
- (D) diffraction
- (A) light form fluorescent tube
- (B) light form neon lamp
- (C) light form sodium lamp
- (D) light form simple lamp
- (A) a cylindrical wave front
- (B) an elliptical wave front
- (C) a spherical wave front
- (D) a plane wave front
- (A) reflection
- (B) refraction
- (C) diffraction
- (D) polarization
- (A) Hertz
- (B) Fresnel
- (C) Einstein
- (D) Plank
- (A) velocity
- (B) wavelength
- (C) amplitude
- (D) frequency
- (A) interference fringes only
- (B) diffraction fringes only
- (C) both interference and diffraction fringes
- (D) polirized frringes
- (A) thickness of the film only
- (B) nature of the film only
- (C) angle of indidence only
- (D) all thickness nature and angle of incidence
