Asdghjkl - 692 Words

http://www.darvill.clara.net/emag/index.htm also refer to Boardworks 2, 3 and 4 on the VLE 1. Which band of the electromagnetic spectrum has: | | (a) the longest wavelength? | Radio Waves | (b) the lowest frequency? | Radio Waves | (c) the shortest wavelength? | Gamma Rays | (d) the highest frequency? | Gamma Rays | (e) a wavelength just longer than red light? | Infra-Red | (f) a wavelength just shorter than violet light? | Ultra Violet | (g) a frequency higher than X-rays? | Gamma Rays | (h) a frequency lower than microwaves? | Radio Waves | (i) a wavelength in between infra-red and ultra-violet? | Visible Light | (j) a wavelength in between gamma rays and ultra-violet? | X Rays | (k) a frequency in between†¦show more content†¦| Violet, Indigo, Blue, Yellow, Orange, Red | 5. List the bands of the electromagnetic spectrum starting with the band of longest wavelength. | Red, Orange, Yellow, Blue, Indigo, Violet | 6. List the bands of the electromagnetic spectrum starting wi th the band of highest frequency. | Violet, Indigo, Blue, Yellow, Orange, Red | 7.(a) Which band of the electromagnetic spectrum is the most dangerous? | Gamma Rays | (b) List some of the effects on the human body of this radiation. | They cause mutations in growing tissues and cause cell damage and cause a variety of cancers. | 8.(a) Which band of the electromagnetic spectrum can be diffracted most easily? | Radio Waves | (b) Explain your answer. | Radio waves can be diffracted the easiest because they have the largest wavelength. | 9.Radio waves travel at 300 000 000 m/s through a vacuum. | (a) How long will radio waves take to reach the Moon if the Moon is 600 000 km from the Earth? | | (b) Calculate the frequency of radio waves that have wavelength 3.0m. (FM Radio Station) | | (c) Calculate the wavelength of radio waves that have frequency 200 kHz (Radio 4 LW) | | 10.Light travels at 300 000 000 m/s through a vacuum. | | (a) How long will light take to reach the Earth from the Sun if the Sun is 150 000 000 km from the Earth? | | (b) Calculate the frequency of red light that has a wavelength of 7.0 x 10 -7 m (0. 000 000 7m) | | (c) Calculate the wavelength of violet light that has