2 - Dispersion and Deviation Questions Answers

Can You Please Explain the Cartesian method for mirror and Lens?

Asked By: BONEY HAVELIWALA
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Joshi sir comment

Cartesian method is the method of sign convention

Sign Convention for Spherical Mirrors and Thin Lenses 
 
 
                                   Spherical Mirrors                   Lenses 
Focal Length            - for concave mirrors            + for a converging lens  
                              + for convex mirrors               - for a diverging lens 
Object Distance           - real object                     - real object 
                                + virtual object                 + virtual object
 
 
Image Distance           - real image                          + real image 
                                 + virtual image                   - virtual image 
Magnification            + for erect image                 + for erect image  
                              - for inverted image            - for inverted image 

which physical quantity has its unit as LUX??

Asked By: SARIKA SHARMA
is this question helpfull: 3 1 submit your answer
Joshi sir comment

its illuminance

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