Physics, asked by saloniagrawal543, 11 months ago

For the same angle of incidence in media A B C the angles of refraction are 20 30and 40 degree respectively in which medium will the velocity of light be maximum give reasons in support of ur answer

Answers

Answered by madhavgupta200pa3ir0

Velocity of light is directly proportional to angle of refraction

So ans is C

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madhavgupta200pa3ir0: See

madhavgupta200pa3ir0: In ncert there is Snell's law. Which says sin I |/ sine r =constant (which is refractive index

madhavgupta200pa3ir0: Now n (refractive index )= speed of light in vaccum(c)/speech of light in medium(v)

madhavgupta200pa3ir0: So sin i / sin r = c/v. So when sin r increase then v will increase. So r is directly proportional to speed of light in medium (v)

madhavgupta200pa3ir0: Thus when angle of refraction will be maximum (40°) then speed will be maximum

madhavgupta200pa3ir0: This question is from CBSE official science class 10 sample paper 2018-19

saloniagrawal543: Tqsm it really cleared my doubt

saloniagrawal543: I loved it

madhavgupta200pa3ir0: welcome

madhavgupta200pa3ir0: and mark as Brainliest please and follow

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