P1010 - REFRACTION THROUGH A RECTANGULAR GLASS SLAB - 1.15

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THE PHYSICS CAFE                                                                                    

CHAPTER TEN - LIGHT - REFLECTION AND REFRACTION

 

1.15 Refraction through a Rectangular Glass Slab**                                                            



 

Light travel: Air → glass slab → air and AB arm ║ CD arm

At arm AB - Air → glass slab – rare to denser – bends towards normal

At arm CD - Glass slab → air – denser to rare – bends away from normal

Important points

1.    Emergent ray – The ray which comes out from denser medium to rare medium

2.    AB arm ║ CD arm so ‘bending away from normal is equal to bending towards normal’ so emergent ray will be parallel to direction of incident ray.

3.    ∟i = ∟e

4.    ∟r1 = ∟r2

5.   Lateral displacement – Perpendicular distance between direction of incident ray and emergent ray

 

Click here for download.. Refraction & refractive index 1.13, 1.14

Click here for download.. Light - Ncert exercise question answer

Click here for download.. Rules for image formation, checking and uses of concave and convex mirrors 1.07 - 1.09

Click here for download.. Spherical mirrors, identification and image formation rules 1.05 - 1.06

Click here for download.. Reflection of light, laws and properties 1.01 -  1.04
Click here for download.. NCERT SCIENCE 10 CH10 - IN TEXT QUESTION ANSWER

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