Course Contents.. Set 7 (due Thurs 3/15 at 11:59PM) Select True or False for the
ID: 3309099 • Letter: C
Question
Course Contents.. Set 7 (due Thurs 3/15 at 11:59PM) Select True or False for the following statements about electromagnetic waves True X-rays can be produced in transitions involving inner electrons in an atom. Blue light has a longer wavelength than red. False A vertical automobile antenna is sensitive to electric fields polarized vertically. True Radio waves have wavelengths longer than 1 m. Submi Anawer Tries 0/99 Gamma rays can be produced through electrons oscillating in wires of electric circuits. : The sun's radiation is most intense in the visible region. : Ultraviolet radiation causes common sunburn Post Discussion Send FeedbackExplanation / Answer
1. True, X-rays are produced when electrons strike a metal target. The electrons are liberated from the heated filament and accelerated by a high voltage towards the metal target.
2. False, from an electromagnetic spectrum chart, red has a longer wavelength than blue.
3. False, gamma rays can not be produced this way. Nuclear state transitions will produce gamma rays.
4. True, the atoms in the antenna would not have to move far in order to pick up the signal.
5. True, sun's radiation intensity is maximum within the visible region.
6. False, radiowaves has wavelength in millimeters.
7. True, sunburn is caused by UV radiation. It is a reaction of the body to direct DNA damage from UVB light.