1. Green 4.0x10 -7 m 6.5x10 -7 m 5.2x10 14 Hz 1.2x10 -1 m 5.7x10 14 Hz 3.3 m 6.0x10 16 Hz 1.0x10 15 Hz 1.0x10 -4 m 3.0x10 19 Hz minimum Radio, Micro, IR, Visible, UV, Xrays, Gamma Gamma, Xrays, UV, Visible, IR, Micro, Radio f 1 λ 1 =f 2 λ 2

2. 10 nm 5.6x10 6 m/s Away from Earth 16 nm 8.6x10 6 m/s Towards Earth Galaxy B bc it has the greater shift. Support, it’s like seeing the ripples in a pond, but not seeing the object that caused the splash. B and D A and C C B 10.5 nm Longer 460.5 nm

5. House A House B Occupants of house A can see everything outside, but cannot see inside of house B. Occupants of house B can see everything outside, but cannot see inside of house A.

6. Cyan Magenta Yellow Blue Green Red Blue Red Black GREEN YELLOW WHITE CYAN BLUE