Select True or False for the following statements about electromagnetic waves. 1

Question

Select True or False for the following statements about electromagnetic waves.

1. The Earth's atmosphere is quite transparent to infrared radiation.
2. The sun's radiation is most intense in the visible region.
3. X-rays can be produced in transitions involving inner electrons in an atom.
4. Gamma rays travel in vacuum at the same speed as the visible light.
5. A vertical automobile antenna is sensitive to electric fields polarized horizontally.
6. Blue light has a higher frequency than X-rays.
7. Radio waves have wavelengths longer than 1 m.

Explanation / Answer

1. The Earth's atmosphere is quite transparent to infrared radiation. - true

2. The sun's radiation is most intense in the visible region. - false

3. X-rays can be produced in transitions involving inner electrons in an atom. - false

4. Gamma rays travel in vacuum at the same speed as the visible light. - true

5. A vertical automobile antenna is sensitive to electric fields polarized horizontally. -true

6. Blue light has a higher frequency than X-rays. - false

7. Radio waves have wavelengths longer than 1 m. - true

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