One light wave is incident upon a plate of refracting index m . Incident angle i , for which refractive & reflective waves are mutuallyperpendicular will be a. i = 450b. i=sin−1(?)c. i = coesc−1(?)d. ?=tan−1(?)

One light wave is incident upon a plate of refracting index m . Inci

1.	One light wave is incident upon a plate of refracting index m . Incident angle i , for which refractive & reflective waves are mutuallyperpendicular will be a. i = 450b. i=sin−1(?)c. i = coesc−1(?)d. ?=tan−1(?)
Answer» OPTION d)tan^-1 i + 90°+ r =180° i+ r =90° r=90° -i (MIU) u=SIN i /sin r =sin i/ sin(90°- i) =sin i/ cos i (miu) u=tan i i=tan i ^-1(u)

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One light wave is incident upon a plate of refracting index m . Incident angle i , for which refractive & reflective waves are mutuallyperpendicular will be a. i = 450b. i=sin−1(?)c. i = coesc−1(?)d. ?=tan−1(?)​

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One light wave is incident upon a plate of refracting index m . Incident angle i , for which refractive & reflective waves are mutuallyperpendicular will be a. i = 450b. i=sin−1(?)c. i = coesc−1(?)d. ?=tan−1(?)