Q. 3 : monochromatic light of wavelength 5.45 × 10-5 Fringes produced with are cm. A thin glass plate of R.I. (1.5) is then normally placed in one of the paths of interfering waves and the central bright band of the fringe system is found to move into the position, previously occupied by the third bright band from the system. The thickness of glass plate will be (а) 32.7 х 104 cm (b) 32.7 х 105 cm (c) 16.7 x 103 cm (d) 12.5 x 10° cm
Q. 3 : monochromatic light of wavelength 5.45 × 10-5 Fringes produced with are cm. A thin glass plate of R.I. (1.5) is then normally placed in one of the paths of interfering waves and the central bright band of the fringe system is found to move into the position, previously occupied by the third bright band from the system. The thickness of glass plate will be (а) 32.7 х 104 cm (b) 32.7 х 105 cm (c) 16.7 x 103 cm (d) 12.5 x 10° cm
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Transcribed Image Text:Q. 3
monochromatic light of wavelength 5.45 x 103
cm. A thin glass plate of R.I. (1.5) is then
normally placed in one of the paths of
interfering waves and the central bright band
of the fringe system is found to move into the
position, previously occupied by the third
bright band from the system. The thickness of
glass plate will be
Fringes
produced
with
:
are
(а)
32.7 х 104 сm (b) 32.7 х 105 cm
(c)
16.7 х 10-3 сm (d) 12.5х 10-3 ст
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