33. Geometric Optics

Refraction At Spherical Surfaces

REFRACTION AT SPHERICAL SURFACE _ PART 01

Solved example: Curved surface refraction | Class 12 (India) | Physics | Khan Academy

Refraction at Spherical Surfaces

<p>An object is embedded in glass as shown in the following figure. If the glass has a concave face, and is embedded in water, where will the image be located? Will the image be real or virtual?</p><p><img src="https://static.studychannel.pearsonprd.tech/courses/physics/thumbnails/images/42ef8022"alt=""/></p>

 A student observes a goldfish in a flat sided aquarium. The goldfish observes the student. If the student observes that the image of the fish’s nose is <math display="inline"><mrow><mn>6.0</mn><mo rspace="thickmathspace">&#x2062;</mo><mi mathvariant="normal" class="MathML-Unit">cm</mi></mrow></math> from the side of the tank, how far behind the glass is the nose of the fish? 

 One side of a biconvex glass lens (n=1.5) has a radius of curvature of <math display="inline"><mrow><mn>25</mn><mo rspace="thickmathspace">&#x2062;</mo><mi mathvariant="normal" class="MathML-Unit">cm</mi></mrow></math>, while the other side has a radius of curvature of <math display="inline"><mrow><mn>40</mn><mo rspace="thickmathspace">&#x2062;</mo><mi mathvariant="normal" class="MathML-Unit">cm</mi></mrow></math>. What is its focal length? 

Curved surface refraction formula | Class 12 (India) | Physics | Khan Academy

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