Consider the formation of primary rainbow and secondary as seen by an observer on earth. The order of colours is

Engineering

Physics

Dispersion

Total Internal Reflection

Wavefront

Question

Consider the formation of primary rainbow and secondary as seen by an observer on earth. The order of colours is

ROYGBIV from inside to outside for primary rainbow and VIBGYOR from inside to outside for secondary rainbow

ROYGBIV from inside to outside for primary rainbow and ROYGBIV from inside to outside for secondary rainbow

VIBGYOR from inside to outside for primary rainbow and VIBGYOR from inside to outside for secondary rainbow

VIBGYOR from inside to outside for primary rainbow and ROYGBIV from inside to outside for secondary rainbow

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n sin $ϕ$ = sinθ

n_v > n_r

$ϕ$ _v < θ_r