Physics · Optics, Nature of Light and Optical Instruments
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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)
- A
2 pm
- B
1 um
- C
2 um
- D
1 nm
The explanation is given below:
Wavelength = slit separation x firing separation/Distance between slits and screen
All the values, of distance, would be converted to meters (m).
Slit separation = 1 x 10-3m
Fringe separation = 2 x 10-3m
Distance between slit and screen = 200 x 10-2m
This option is incorrect as per the formula.
Wavelength = slit separation x firing separation/Distance between slits and screen
All the values, of distance, would be converted to meters (m).
Slit separation = 1 x 10-3 m
Fringe separation = 2 x 10-3 m
Distance between slit and screen = 200 x 10-2 m
Input these values and you will get this answer.
This option is correct.
Wavelength = slit separation x firing separation/Distance between slits and screen
All the values, of distance, would be converted to meters (m).
Slit separation = 1 x 10-3 m
Fringe separation = 2 x 10-3 m
Distance between slit and screen = 200 x 10-2 m
Input these values and you will get this answer.
This option is incorrect as per the formula.
Wavelength = slit separation x firing separation/Distance between slits and screen
All the values, of distance, would be converted to meters (m).
Slit separation = 1 x 10-3 m
Fringe separation = 2 x 10-3 m
Distance between slit and screen = 200 x 10-2 m
Input these values and you will get this answer.
This option is incorrect as per the formula.
Wavelength = slit separation x firing separation/Distance between slits and screen
All the values, of distance, would be converted to meters (m).
Slit separation = 1 x 10-3 m
Fringe separation = 2 x 10-3 m
Distance between slit and screen = 200 x 10-2 m
Input these values and you will get this answer.
Tagged under Physics · Optics, Nature of Light and Optical Instruments · 2019