TS EAMCET · Physics · Wave Optics
Two slits are made one millimetre apart and the screen is placed one metre away from the slits. The fringe width when light of wavelength \(500 \mathrm{~nm}\) is used is
- A \(5 \mathrm{~m}\)
- B \(0.5 \mathrm{~mm}\)
- C \(0.5 \mathrm{~m}\)
- D \(5 \mathrm{~cm}\)
Answer & Solution
Correct Answer
(C) \(0.5 \mathrm{~m}\)
Step-by-step Solution
Detailed explanation
Separation between two slit, \(\mathrm{d}=1 \mathrm{~mm}=10^{-3} \mathrm{~m}\) Distance between screen and the slit, \(\mathrm{D}=1 \mathrm{~m}\) Wavelength of light, \(\lambda=500 \mathrm{~nm}=500 \times 10^{-9} \mathrm{~m}\) The fringe width will be…
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