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

Question

Select True or False for the following statements about electromagnetic waves. Radio waves travel in vacuum at a lower speed than the visible light. X-rays travel in vacuum at a higher speed than the visible light. The Earth's atmosphere is quite transparent to infrared radiation. Gamma rays can be produced through electrons oscillating in wires of electric circuits. The sun's radiation is most intense in the infrared region. A vertical automobile antenna is sensitive to electric fields polarized vertically. Radio waves have wavelengths longer than 1 m.

Explanation / Answer

Radio waves have same speed in vacuum as of light False

False -same reason as above , if there is no vacuum then the speed falls as per the density more the denser the medium more the radiation or waves will bend.

False- we all know Global warming , if it transparent then there would not be the chances of trapping of the infrared inside the earth atmosphere cause by the global warming gases such as CO2 N2O.

False- radio waves are produced like that.

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