A light ray is incident normally on a glass slab of thickness t and refractive index mu as shown in the figure. Then find time taken by the light ray to travel through the slab.

A light ray is incident normally on a glass slab of thickness t and re

1.	A light ray is incident normally on a glass slab of thickness t and refractive index mu as shown in the figure. Then find time taken by the light ray to travel through the slab.
Answer» <html><body><p></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> :<img src="https://doubtnut-static.s.llnwi.net/static/physics_images/AKS_DOC_OBJ_PHY_XII_V02_A_C02_SLV_020_S01.png" width="80%"/> <br/> From the figure distance <a href="https://interviewquestions.tuteehub.com/tag/travelled-7256865" style="font-weight:bold;" target="_blank" title="Click to know more about TRAVELLED">TRAVELLED</a> by the <a href="https://interviewquestions.tuteehub.com/tag/light-1073401" style="font-weight:bold;" target="_blank" title="Click to know more about LIGHT">LIGHT</a> ray through the <a href="https://interviewquestions.tuteehub.com/tag/slab-1211590" style="font-weight:bold;" target="_blank" title="Click to know more about SLAB">SLAB</a> is t. <br/> Velocity of light in glass `=(distance travell ed) / (<a href="https://interviewquestions.tuteehub.com/tag/time-19467" style="font-weight:bold;" target="_blank" title="Click to know more about TIME">TIME</a>)` <br/> `c/mu=t/ (time) , time = (mu t)/c`</body></html>