Answer: 3 x 10 8 m/s.
- A 3 x 10<sup>6</sup> m/s
- B 3 x 10<sup>8</sup> m/s
- C 3 x 10<sup>10</sup> m/s
- D 3 x 10<sup>12</sup> m/s
Correct answer: B. 3 x 10<sup>8</sup> m/s
Explanation: Speed of light c = 3 x 10<sup>8</sup> m/s in vacuum. This is the maximum speed in the universe.
Concave mirror ray construction: a ray parallel to the axis reflects through F, and a ray through F reflects parallel, locating the inverted real image. Image: Maxmath12, CC0, via Wikimedia Commons.
Concept context
Reflection, refraction, lenses, mirrors, total internal reflection.