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प्रश्न
During dispersion of white light by prism placed in air, for a particular value of angle of prism,
विकल्प
only angular spread takes place.
only angular deviation takes place
both angular deviation and angular spread take place
either of angular deviation for mean colour or spread takes place
MCQ
उत्तर
During dispersion of white light by prism placed in air, for a particular value of angle of prism, only angular deviation takes place.
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