SATHEE: Optics Question 738

Optics Question 738

Question: The time taken by sunlight to cross a 5 mm thick glass plate $(μ = 3 / 2$ ) is

[MP PMT/PET 1998; BHU 2005]

Options:

A) 0.25 $\times$ 10?10 $s$

B) $0.167 \times 10^{- 7}$

$s$

C) $2.5 \times 10^{- 10}$

$s$

D) $1.0 \times 10^{- 10}$

$s$

Show Answer

Answer:

Correct Answer: A

Solution:

$t = \frac{μ x}{c} = \frac{\frac{3}{2} \times 5 \times 10^{- 3}}{3 \times 10^{8}} = 0.25 \times 10^{- 10} s$

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Optics Question 738

Question: The time taken by sunlight to cross a 5 mm thick glass plate (μ=3/2 ) is

Options:

Answer:

Solution:

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Question: The time taken by sunlight to cross a 5 mm thick glass plate $(μ = 3 / 2$ ) is