White light may be considered to be a mixture of wavelengths λ ranging between 3900 ˚A and 7800 ˚A. An oil film of thickness 10000 ˚A is examined normally by reflected light. If μ=1.4 , then the film appears bright for-

White light may be considered to be a mixture of wavelengths λ rangin

1.	White light may be considered to be a mixture of wavelengths λ ranging between 3900 ˚A and 7800 ˚A. An oil film of thickness 10000 ˚A is examined normally by reflected light. If μ=1.4 , then the film appears bright for-
Answer» White light may be considered to be a mixture of wavelengths $λ$ ranging between $3900 ˚ A and 7800 ˚ A .$ An oil film of thickness $10000 ˚ A$ is examined normally by reflected light. If $μ = 1.4$ , then the film appears bright for-

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White light may be considered to be a mixture of wavelengths λ ranging between 3900 ˚A and 7800 ˚A. An oil film of thickness 10000 ˚A is examined normally by reflected light. If μ=1.4 , then the film appears bright for-

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