Light, emitted by a single source, passes through 2 narrow slits 1.00 mm apart. The interference pattern is observed on a screen 200 cm away and the separation between the centers of adjacent bright fringes is 2.00 mm. What would be the wavelength of the light?(u= micro)
Correct answer: B. 1 um
- A. 2 pm
- B. 1 um
- C. 2 um
- D. 1 nm
Explanation
The explanation is given below:Wavelength = slit separation x firing separation/Distance between slits and screenAll the values, of distance, would be converted to meters (m).Slit separation = 1 x 10-3mFringe separation = 2 x 10-3mDistance between slit and screen = 200 x 10-2m
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Light is studied through reflection, refraction, dispersion, interference, diffraction and polarization, linking ray behavior with its wave nature. Questions may involve mirrors, lenses, optical instruments, refractive index and image formation, while geometrical optics deals with rays and wave optics explains effects such as interference and diffraction.
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