refractive index

JEE Advanced 2015 Sample Questions › Optics questions › refractive index

A disc of diameter 7 cm is placed inside a hemispherical bowl of 25 cm. What should be the refractive index of water such that the disc is completely visible on filling it with water?

#Physics #Optics

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6 Answers

cute_cat ·2010-01-01 04:37:29

someone please answer...

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Devil ·2010-01-04 09:08:46

I don't think we'll have any definite value....is the value asked or the minimum value?

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cute_cat ·2010-01-04 22:20:23

yes...its asked for the mnimum value...

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Devil ·2010-01-09 09:06:06

Tell me if u can get anything from it...

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eureka123 ·2010-01-09 09:13:57

@soumik...orientation of disc isnt given..
so the disc can be placed in horz position too......

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Devil ·2010-01-10 07:19:17

But I don't get how can we get the minimum r.i. from dat.

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Basic Integral Calculus Operators Symbols Matrix Cases

√ √ || {} [] () → ~ ^ x x x → → ln log lg lim lim cos sin tan cot arcsin arccos arctan

∫ ∫ ∫ ∫ ∫ ∬ ∬ ∬ ∬ ∬ ∭ ∭ ∭ ∭ ∭ ⨌ ⨌ ⨌ ⨌ ⨌

∑ ∑ ∑ ∑ ∑ ∮ ∮ ∮ ∮ ∮ ∏ ∏ ∏ ∏ ∏ ∐ ∐ ∐ ∐ ∐

+ - × ÷ ± ∓ = ∪ ∩ ≠ ∼ ≈ ∅ ∀ ∃ ∈ ∋ ∝ ≤ ≥ ≃ ≅ ≡ < > ≪ ≫ ⊂ ∉ ⊃ ⊆ ⊇ ⇒ ⇐ ⇔ ⇒ ⇐ ⇔ ⇑ ⇓ ⇕ → ← ↔ → ← ↔ ↑ ↓ ↕ ↖ ↗ ↘ ↙ ↪ ↩ ⇀ ↼ ⇁ ↽

° ∂ ∞ α β γ δ θ λ μ ν ξ π ρ σ φ ω ε ƒ κ τ υ Γ Δ Λ Σ Π Ω

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refractive index

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