COMEDK · Physics · 25. Ray Optics
What will be the wave length, if a light of wave length 600 nm travels from air enters a medium of refractive index 1.5 and continues its journey through that medium?
- A 200 nm
- B 300 nm
- C 600 nm
- D 400 nm
Answer & Solution
Correct Answer
(D) 400 nm
Step-by-step Solution
Detailed explanation
When light enters a medium, its frequency remains constant but wavelength changes. The new wavelength \(\lambda'\) is given by: \(\lambda' = \dfrac{\lambda}{n}\) where \(\lambda = 600\) nm (wavelength in air) and \(n = 1.5\) (refractive index of medium).…
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