Electromagnetic radiation travels through vacuum at a speed of __________ m/s.
Question 20 options:
a) 6.9
b) 9.81
c) 3 x 108
d) 3000
e) It depends on wavelength
c) 3 x 108
The correct answer is c) 3 x 108 m/s. Electromagnetic radiation, including light, travels at a speed of approximately 3 x 108 meters per second in a vacuum. This is known as the speed of light in a vacuum, denoted by the symbol "c".
The correct answer is c) 3 x 10^8 m/s.
To arrive at this answer, we need to understand that electromagnetic radiation consists of waves, such as light waves or radio waves. These waves can travel through a vacuum, which is empty space without any matter.
The speed at which electromagnetic radiation travels through a vacuum is known as the speed of light, denoted by the symbol "c". The value of the speed of light is approximately 3 x 10^8 meters per second (m/s).
So, the correct answer to the question is c) 3 x 10^8.