Target Exam

CUET

Subject

Physics

Chapter

Wave Optics

Question:
A monochromatic light refracts by the medium of refractive index 1.5 in vacuum. What will be the wavelength of refracted wave ?
Options:
equal
increase
decrease
depend upon the intensity of the refracted ray.
Correct Answer:
decrease
Explanation:
Speed of the refracted ray is lesser thus the wavelength will also be lesser.