From simple questions to complex issues, IDNLearn.com has the answers you need. Get accurate and detailed answers to your questions from our dedicated community members who are always ready to help.

A pulse of red light and a pulse of blue light enter a glass block normal to its surface at the same time.
After passing through the block, which pulse exits first?
1. Violet light
2. Green light
3. Yellow light
4. Red light
5. Blue light