33. Geometric Optics

Ray Diagrams For Lenses

Ray Diagrams (4 of 4) Concave Lens and Convex Mirror

Anderson Video - Nearsighted vs. Farsighted

Ray Diagrams for Converging Lenses

Anderson Video - Camera Focus

Ray Diagrams for Diverging Lenses

Anderson Video - Magnifying Glass

 <math display="inline"><mrow><mn>0.8</mn><mo rspace="thickmathspace">&#x2062;</mo><mi mathvariant="normal" class="MathML-Unit">cm</mi></mrow></math>, upright 

 <math display="inline"><mrow><mn>0.8</mn><mo rspace="thickmathspace">&#x2062;</mo><mi mathvariant="normal" class="MathML-Unit">cm</mi></mrow></math>, inverted 

 <math display="inline"><mrow><mn>1.6</mn><mo rspace="thickmathspace">&#x2062;</mo><mi mathvariant="normal" class="MathML-Unit">cm</mi></mrow></math>, inverted 

 <math display="inline"><mrow><mn>2.5</mn><mo rspace="thickmathspace">&#x2062;</mo><mi mathvariant="normal" class="MathML-Unit">cm</mi></mrow></math>, upright 

 <math display="inline"><mrow><mn>2.5</mn><mo rspace="thickmathspace">&#x2062;</mo><mi mathvariant="normal" class="MathML-Unit">cm</mi></mrow></math>, inverted 

 <math display="inline"><mrow><mn>1.6</mn><mo rspace="thickmathspace">&#x2062;</mo><mi mathvariant="normal" class="MathML-Unit">cm</mi></mrow></math>, upright 

 A <math display="inline"><mrow><mn>2.0</mn><mo rspace="thickmathspace">&#x2062;</mo><mi mathvariant="normal" class="MathML-Unit">cm</mi></mrow></math> tall object is <math display="inline"><mrow><mn>5.0</mn><mo rspace="thickmathspace">&#x2062;</mo><mi mathvariant="normal" class="MathML-Unit">cm</mi></mrow></math> in front of a diverging lens with focal length <math display="inline"><mrow><mo>&#x2212;</mo><mn>20</mn><mo rspace="thickmathspace">&#x2062;</mo><mi mathvariant="normal" class="MathML-Unit">cm</mi></mrow></math>. What is the height of the image and is it upright or inverted? 

Ray Diagrams (2 of 4) Convex Lens

Anderson Video - Glasses

Anderson Video - Inability to Focus Underwater

Ray Diagrams - Lenses

Anderson Video - Convering Lens Example

Anderson Video - Resolving Power of a Telescope

Anderson Video - Optical Instruments- Eyeballs

Anderson Video - Microscope

 <math display="inline"><mrow><mn>4.0</mn><mo rspace="thickmathspace">&#x2062;</mo><mi mathvariant="normal" class="MathML-Unit">cm</mi></mrow></math> behind the lens 

 <math display="inline"><mrow><mn>5.0</mn><mo rspace="thickmathspace">&#x2062;</mo><mi mathvariant="normal" class="MathML-Unit">cm</mi></mrow></math> in front of the lens 

 <math display="inline"><mrow><mn>5.0</mn><mo rspace="thickmathspace">&#x2062;</mo><mi mathvariant="normal" class="MathML-Unit">cm</mi></mrow></math> behind the lens 

 <math display="inline"><mrow><mn>8.0</mn><mo rspace="thickmathspace">&#x2062;</mo><mi mathvariant="normal" class="MathML-Unit">cm</mi></mrow></math> in front of the lens 

 <math display="inline"><mrow><mn>8.0</mn><mo rspace="thickmathspace">&#x2062;</mo><mi mathvariant="normal" class="MathML-Unit">cm</mi></mrow></math> behind the lens 

 <math display="inline"><mrow><mn>4.0</mn><mo rspace="thickmathspace">&#x2062;</mo><mi mathvariant="normal" class="MathML-Unit">cm</mi></mrow></math> in front of the lens 

 An object is <math display="inline"><mrow><mn>5.0</mn><mo rspace="thickmathspace">&#x2062;</mo><mi mathvariant="normal" class="MathML-Unit">cm</mi></mrow></math> in front of a diverging lens with focal length <math display="inline"><mrow><mo>&#x2212;</mo><mn>20</mn><mo rspace="thickmathspace">&#x2062;</mo><mi mathvariant="normal" class="MathML-Unit">cm</mi></mrow></math>. Where is the image located? 

Anderson Video - Image Formation with Spherical Mirrors

Anderson Video - Telescope

The image is virtual. Distance is greater than f.

The image is real. Distance is greater than f.

The image is virtual. Distance is less than f.

The image is real. Distance is less than f.

<p>If an object is placed within the focus of a converging lens (it’s at a distance of less than the focal length), will a real image form? If so, does it form at a distance less than or greater than the focal length?</p>

A real image is formed at a distance larger than f

A real image is formed at a distance less than f

A virtual image is formed at a distance larger than f

A virtual image is formed at a distance less than f

<p>If an object is placed within the focus of a diverging lens (it’s at a distance of less than the focal length), where will the image form? If so, does it form at a distance less than or greater than the focal length?</p>

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