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Wave Optics — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsWave Optics1 Mark
Question

In a two slit experiment with monochromatic light fringes are obtained on a screen placed at some distance from the sits. If the screen is moved by 5   towards the slits, the change in fringe width is 3 . If separation between the slits is , the wavelength of light used is

(a) 6000 Å

(b) 5000 Å

(c) 3000 Å

(d) 4500 Å
✓

Answer

(a) 6000 Å

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