1) Longer wavelengths diffract more than shorter wavelengths. Which type of wave would be better for transmitting a signal through a hilly area? a) gamma waves b) microwaves c) infrared d) ultraviolet 2) Louder sound waves have a higher amplitude. Which wave is the quietest? a) b) c) d) 3) Long wavelengths diffract more than short wavelengths. Which colour of light would diffract the least?t? a) red b) green c) yellow d) violet 4) What is the best way to measure the frequency of a water waves? a) time how many waves pass in one second? b) measure the distance they travel in one second c) time how many waves pass in one hour and divide by 3600 d) time how many waves pass in 10 seconds then divide by 10 5) The visible spectrum has wavelengths ranging from 400 nm to 700 nm. Which laser emits visible radiation? a) 300 nm Excimer Laser b) 350 nm Nd:Yag laser c) 633 nm Helium Neon laser d) 10604 nm CO2 laser 6) A person notices that during a thunderstorm, you hear the thunder after the lightning. This is because... a) the sound is absorbed by the air more than light b) light travels much faster than sound c) the sound occurs further away than the light d) your body senses light better than sound 7) If the angle of incidence in air is 50o, , what is the angle of refraction in glass? a) 35o b) 50o c) 70o d) 90o 8) Red light with a wavelength of 700nm and speed of 300 000 000 m/s enters a glass block. Inside the block the wavelength and speed are: a) 550 nm and 300 000 000 m/s b) 700 nm and 200 000 000 m/s c) 550 nm and 400 000 000 m/s d) 550 nm and 200 000 000 m/s

Waves Problem solving quiz

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