Practical!!

What will happen to angle of min deviation in case of prism if we change frequency of light..

19 Answers

33
Abhishek Priyam ·

lol ...

in my mind i assumed that it is increased.. but is it r8..

pata nahi-> i don't know

1
voldy ·

n = A + B/λ2 .
so put this in the eqn for the R.I

n = sin (A+D / 2) / sin(a/2)

now . well cross multiplying , we get some constant.+ nB/λ2 = sin ( A+D)/2 .

then we know that . v=fλ . so we get . that as we increase f , the D increases no ? I don't know whether this's right.

1
? ·

ritely so abhishek

3
msp ·

ohhhhhhh ama anna

33
Abhishek Priyam ·

ncreasing the frequency will decrease the refractive index of t....

it should be opposite..

1
? ·

λ=c/ν ...RITE SANKARA ?

then μ proprtional to v

1
? ·

naa ..rey angle of minimum deviation increases if u increase the frequency

1
MATRIX ·

loooo aagaya sankara[4][4][4]

1
MATRIX ·

oh then type pataaa nahii!!!!ok abhishek!!!!!!![4][4][4][4]

3
msp ·

i know a relation

μ=k+B/λ2 k,B are +ive constants.i think this relation is know as cauchys formula

λ=c/ν

increasing the frequency will decrease the refractive index of the prism and therefore it decreases the minimum deviation angle

1
MATRIX ·

it will increase Abhishek am i rite?!!!!!!!![4][4][4][4]

1
MATRIX ·

wats 'pata' Abhishek?

1
? ·

ok but u didnt specify whether the u are increasing or decreasing the frequency

33
Abhishek Priyam ·

[12]

1
? ·

A.D = d@/dA

here @ = angle of minimum deviation

and A.D inversely proportional to the cube of the wavelength

33
Abhishek Priyam ·

dimag mera kharab hai aaj [2]

33
Abhishek Priyam ·

i think got it..
λ decreases so μ increases.. hence angle of min dev.. increases

1
? ·

angular dispersion will change ...now as it is related to angle of minimum deviation , it will also be affectd

33
Abhishek Priyam ·

nahi pata..

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