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प्रश्न
A wavefront AB passing through a system C emerges as DE. The system C could be:
विकल्प
a slit
a biprism
a prism
a glass slab
MCQ
उत्तर
a prism
Explanation:
A slit produces divergent, a biprism produces double, and a glass slab produces a parallel wavefront. The incline is downhill.
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