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Questions and Answers
What is the speed of light in a vacuum?
What is the speed of light in a vacuum?
- $1.86 \times 10^5$ m/s
- $2.45 \times 10^8$ m/s
- $3.00 \times 10^5$ m/s
- $2.99 \times 10^8$ m/s (correct)
Which of the following is not a form of light energy?
Which of the following is not a form of light energy?
- X-rays
- Ultraviolet rays
- Radio waves
- Sound waves (correct)
What is the phenomenon where light bends as it passes from one medium to another?
What is the phenomenon where light bends as it passes from one medium to another?
- Dispersion
- Diffraction
- Reflection
- Refraction (correct)
