4 - Refraction Questions Answers

Physics >> Optics >> Refraction IIT JEE
Dear Sir request if you can help provide solution. 
Asked By: RK GUPTA
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Physics >> Optics >> Refraction IIT JEE
Asked By: BHASKAR JHA
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Joshi sir comment

Let α is small angular displacement As shown x = lsinα and y = lcosα/μ now use sin2α+cos2α = 1

Physics >> Optics >> Refraction Medical Exam

if ω1 &ω2 are dispersive powers of lenses of focal length f1 & f2 respectively . then the condition of chromatic aberration for two lenses in contact is

1) ω1/ω2 = f2/f1

2) ω1/ω2 = f1/f2

3) ω1/ω2= - f1/f2

4) ω2/ω1= f1/f2

Asked By: HIMANSHU
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Joshi sir comment

3 is the true condition and can be proved

Physics >> Optics >> Refraction IIT JEE

what is meant by rate of change of transverse magnification

Asked By: NIKHIL VARSHNEY
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Joshi sir comment

transverse magnification m = v/u so rate of change of trasverse magnification is dm/dt. calculate by differentiation

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