Question

I want all the formulae in the chapter light- reflection and refraction.
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Answer 1

Answer:

Formulas related to reflection of light,

=> in reflection angle of incidence is equal to angle of relection,

<i=<r

=>mirror formula

   1/f = 1/u +1/v

where f is the focal length of mirror

u is the object distance

v is the image distance

=> magnification = height of image/height of object

m=hi/ho

wher m is the magnification

hi is the height of image

ho is the height of object

=>also m=-v/u

formulaes related to refraction of light,

=> n =sini/sinr

where n is the refractive index

i is angle of incidence

r angle of refraction

=>lens formula

1/f =1/v -1/u

=>power of lens,p=1/f(in m )

p=100/f(in cm)

=>power of combination of lens

P=P1+P2+P3...

=>magnification ,m=hi/ho

m=v/u

=> refractive index n21=speed of light in medium one /speed of light in medium 2

n21=v1/v2

Explanation:

please brainlist  me

Answer 2

Answer:

incident ray(I)

point of incidence

reflected ray(R)

angle of incidence (Li)

normal line (N)

glancing angle of reflection(rg)

laws of reflection

angle of deviation (d)

Lr,ig,rg,Li

Li=Lr

d=180-2i

dnef=360-2tita