JEE Mains Model Paper 3
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Paragraph-II (Q.Nos 43 to 45) :
A ray of light is incident normally on one face of an isosceles prism such that after suffering total internal reflection twice inside the prism, it emerges normally from its base. Then answer, the following questions.
A ray of light is incident normally on one face of an isosceles prism such that after suffering total internal reflection twice inside the prism, it emerges normally from its base. Then answer, the following questions.
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Question : 45 of 90
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Left half of a semicircular ring has negative charge density (-λ) and right half haspositive charge density (+λ) such that electric filed at the centre of the ring of radiusR is found to be
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