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Questions  >>  JEEMAIN and NEET  >>  Physics  >>  Class12  >>  Wave Optics
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Q)

If a light beam is incident at polarising angle, $(55.3^{\circ})$ on glass air interface , What is angle of refraction in glass?

$(a)\;33.7^{\circ} \\ (b)\;34.7^{\circ} \\ (c)\;55.3^{\circ} \\ (d)\;54.3^{\circ} $

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A)
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At polarising angle,
$i_p +r_p =90^{\circ}$
$r_p =90-i_p=90-55.3^{\circ}$
$\qquad= 34.7^{\circ}$
Hence b is the correct answer.
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