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प्रश्न
Light incident at angle 52.5° on a bucket filled with water be completely polarised after reflection. Calculate the refractive index of the water.
संख्यात्मक
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उत्तर
Given: θB = 52.5°
n1 = 1
To find: n2 = ?
Formula: tan θB = `n_2/n_1`
n2 = n1 × tan θB
= 1 × tan (52.5°)
= 1.3032
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