| {"index": "193", "description": "Figure shows a refracted light beam in linseed oil making an angle of \\( \\phi = 20.0^{\\circ} \\) with the normal line \\( NN' \\). The index of refraction of linseed oil is 1.48.", "question": "Determine the angles\\( \\theta' \\).", "image": "193.png", "options": "A:\"\\( \\theta' = 28.5^{\\circ} \\)\",B:\"\\( \\theta' = 30.4^{\\circ} \\)\",C:\"\\( \\theta' = 22.3^{\\circ} \\)\",D:\"\\( \\theta' = 31.1^{\\circ} \\)\"", "answer": "C", "category": "Optics", "question_simply": "Figure shows a refracted light beam in linseed oil making an angle of \\( \\phi = 20.0^{\\circ} \\) with the normal line \\( NN' \\). The index of refraction of linseed oil is 1.48."} | |