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06-04-2024
Physics

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Light travels in two media M₁ and M₂ with speeds 1.510⁸ ms and 2.010⁸ ms⁻¹ respectively. the crtical angle between them is?
a. tan⁻¹(3/√7)
b. tan⁻¹(2/3)
c. cos⁻¹(3/4)
d. sin⁻¹(2/3

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