2. Connect concepts on the left with a description on the right. Concave lens A. Distance between two waves. Magnifier B. Can be captured on screen. Focal length. C. Light of a wavelength. Wavelength D. Scattered incident light. Infrared radiation E. Convex lenses. Real picture F. Distance to the focal point. Laser G. Light swinging in one direction. Polarized light. H. Heat radiation

3. Explain in as much detail as you can how a rainbow arises. a