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Wave Optics — Physics STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 SciencePhysicsWave Optics1 Mark
Question
In Young's double slit experiment, the distance between sources is 1 mm and distance between the screen and source is 1 m. If the fringe width on the screen is 0.06 cm, then λ =    (a) 6000 Å(b) 4000 Å(c) 1200 Å(d) 2400 Å
       
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Answer

(a) 6000 Å

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