lenses -- keka qsn

AIEEE Preparation › Optics questions › lenses -- keka qsn

A thin hollow equiconvex lens silvered at the back converges a parallel beam of light, at a distance of 0.2m in front of it. Where will it converge the same light, if filled with water (Âµ = 4/3).

#Physics #Optics

UP 0 DOWN 0 0 3
Post on FacebookPost anonymously?

3 Answers

Lokesh Verma ·2008-12-30 06:16:05

Yesh:

I think the first case it will act as a concave mirror....
With some radius of curvature... which u will be able to find easily...

Then you will have to use a combination of one curved refracting surface with a mirror!

UP 0 DOWN 0
Post on FacebookPost anonymously?

yeshkadiyala ·2009-01-01 06:28:21

but why doe it act like one????

UP 0 DOWN 0
Post on FacebookPost anonymously?

cooljoy ·2009-01-01 07:32:15

the focal length of the silvered part=-.2m

for non silvered part apply lens maker's formula
then apply
P eq=2P l+p m

UP 0 DOWN 0
Post on FacebookPost anonymously?

Your Answer

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

Close [X]

lenses -- keka qsn

3 Answers

Your Answer

Add Image

Similar Questions