Select True or False for the following statements about electromagnetic waves. T
ID: 1460879 • Letter: S
Question
Select True or False for the following statements about electromagnetic waves. True ? Radio waves have wavelengths longer than 1 m. True? A vertical automobile antenna is sensitive to electric fields polarized vertically. False X-rays travel in vacuum at a higher speed than the visible light. False ? Radio waves travel in vacuum at a lower speed than the visible light. True Ultraviolet radiation causes common sunburn. True ? Gamma rays can be produced in transitions of an atomic nucleus from one state to another. False ? The sun?s radiation Is most intense In the visible region.Explanation / Answer
1) Radio waves have wavelengths in the range of 1mm to 100 km
2) True, if it were not, the atoms in the antenna would not have very far to move in order to pick up the signal.
3) False, the speed of x rays in vacuum is same as that of visible light.
4) False, the speed of radio waves is same as that of light.
5) True.
6) True, nuclear state transitions produce gamma rays.
7) True.