Monochromatic light of wavelength travels in glass at a speed of

PHYSICS · Subjective · CBSE · Physics · Waves · Waves

Problem

Monochromatic light of wavelength

400\,\text{nm}

travels in glass at a speed of

2.0\times10^{8}\,\text{m}\,\text{s}^{-1}

. The same light enters another transparent medium where its speed is

1.6\times10^{8}\,\text{m}\,\text{s}^{-1}

while the source frequency remains the same. Determine the wavelength of the light in the new medium.