MHT CET · Physics · Ray Optics
A glass slab of thickness \(t\) and refractive index \(\mu\). Calculate the time taken by light to travel this thickness.
- A \(t \mu c\)
- B \(\frac{t c}{\mu}\)
- C \(\frac{t}{\mu c}\)
- D \(\frac{\mu t}{c}\)
Answer & Solution
Correct Answer
(D) \(\frac{\mu t}{c}\)
Step-by-step Solution
Detailed explanation
Time taken by light ray to pass through glass slab \(=\frac{\mu t}{c}\)
where \(\quad t=\) geometrical path \(\mu t=\) optical path
where \(\quad t=\) geometrical path \(\mu t=\) optical path
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