Question
1.
2.
3.
4.
Answer (Detailed Solution Below)
Option 2 : $41.8^\circ$ / $41.8^\circ$
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Detailed Solution
सही उत्तर $41.8^\circ$ / $41.8^\circ$ है।
Key Points
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prepsnap.in • Part -AQuestion:
The critical angle for a glass–air interface ($n_{glass} = 1.5$) is approximately / काँच–वायु अंतरापृष्ठ ($n_{glass} = 1.5$) के लिए क्रांतिक कोण लगभग है
1.
$56.3^\circ$ / $56.3^\circ$
2.
$41.8^\circ$ / $41.8^\circ$
3.
$48.6^\circ$ / $48.6^\circ$
4.
$30.0^\circ$ / $30.0^\circ$
Correct Answer: $41.8^\circ$ / $41.8^\circ$
From $\sin c = 1/n = 1/1.5$, $c \approx 41.8^\circ$. / $\sin c = 1/n = 1/1.5$ से $c \approx 41.8^\circ$।
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