Page 283 - text book form physics kssm 2020
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Chapter 6
Light and Optics
Spherical mirror Convex mirror Applications in daily life – Reflector in car headlights – Blind spot mirror – Security mirror in – Rear view mirror
Formation of Image Concave mirror • Concave mirror – Dental mirror – Cosmetic mirror • Convex mirror buildings of vehicles
Concave lens 1 v
Lens Thin lens formula 1 + = u Optical instruments • Magnifying glass • Compound microscope Small lens in smartphone cameras and closed circuit television (CCTV)
Convex lens 1 f • Telescope •
Light and Optics ection Daily life bre • Optical fi • Prism periscope • Cat’s eye ector refl
Total Internal Refl Critical angle, c 1 n = sin c Applications
Natural phenomena • Rainbow • Mirage
Refraction of Light Snell’s Law n 1 sin θ 1 = n 2 sin θ 2 Refractive index, n speed of light in vacuum n = speed of light in medium c = v sin i n = sin r real depth n = apparent depth = H h http://bt.sasbadi.com/p4277
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