simple pbm

IIT JEE 2015 Discussion Forum › Optics questions › simple pbm

A lens of focal length 20.0cm and aperture radius 2.0cm is placed at a distance 30.0cm from a point source of light.On the other side a screen is placed at a distance 50.0cm from the lens.The radius of spot of light formed on screen is __________

#Physics #Optics

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skygirl ·2009-01-11 05:07:28

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Anirudh Narayanan ·2009-01-11 05:08:08

Sankara, nee yaroda machan pesindha?

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skygirl ·2009-01-11 05:08:36

i am here [3]

drawing karne ke liye thoda waqt lag gaya :P

sorrrrrrrryyyyyyyyyyyyy [2]

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skygirl ·2009-01-11 05:09:53

heeeeeeeeeeeeyyyyyyyyyyyyyyyyyyy

WHY ARE U ALL TALKING IN 'DUNNO WAT' LANGUAGE ????

TRANSLATE.........

PLZ DO IT........

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msp ·2009-01-11 05:12:48

Aragorn will translate for me.i know that he is a better translator than me.

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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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simple pbm

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