When light enters from a rarer to a denser medium its _____?

جب روشنی نایاب سے ڈینسر میڈیم میں داخل ہوتی ہے تو اس کا _____؟

Its frequency remains same

Velocity increases

Wavelength increases

None of these

When light passes from a rarer to a denser medium, its speed and wavelength decrease, but the frequency stays the same.

This is because the source determines frequency, and it doesn’t change with medium.