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InterviewSolution
| 1. |
The time required for the light to pass through a glass slab (refractive index = 1.5) of thickness 4 mm is (c = 3 xx 10^(8)ms^(-1)"speed of light in free space") |
| Answer» <html><body><p>`10^(-<a href="https://interviewquestions.tuteehub.com/tag/11-267621" style="font-weight:bold;" target="_blank" title="Click to know more about 11">11</a>)`<br/>`2 xx 10^(-11) s`<br/>`2 xx 10^(11)s`<br/>`2 xx 10^(-5)s`. </p><a href="https://interviewquestions.tuteehub.com/tag/solution-25781" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUTION">SOLUTION</a> :(b) We know, `n_(a) c_(a) = n_(g) c_(g)` <br/> `(n_(g))/(n_(a)) = (c_(a))/(c_(g))` <br/> `(3)/(2) = (3xx10^(8))/(c_(g))` <br/> `c_(g) = 2 xx 10^(8)` <br/> We have, Time = `("<a href="https://interviewquestions.tuteehub.com/tag/distance-116" style="font-weight:bold;" target="_blank" title="Click to know more about DISTANCE">DISTANCE</a>")/("Speed")` <br/> `t = (4 xx 10^(-3))/(2 xx 10^(8))` <br/> or "" `t = 2 xx 10^(-11) s.`</body></html> | |