Question 1:
Which of the following quantities determines the bending of light as it passes from one medium to another?
Explanation: The correct answer is C) Index of refraction. The index of refraction of a medium determines how much the light bends when it enters or exits that medium. Snell's Law relates the angles of incidence and refraction to the ratio of the indices of refraction of the two media.
Question 2:
Snell's Law states that the ratio of the sine of the angle of incidence to the sine of the angle of refraction is equal to:
Explanation: The correct answer is D) The ratio of the indices of refraction. Snell's Law states that the ratio of the sine of the angle of incidence to the sine of the angle of refraction is equal to the ratio of the indices of refraction of the two media involved in the refraction process.
Question 3:
When light travels from a medium with a higher refractive index to a medium with a lower refractive index, it:
Explanation: The correct answer is B) Bends away from the normal. When light travels from a medium with a higher refractive index to a medium with a lower refractive index, it bends away from the normal, i.e., it refracts away from the perpendicular line drawn to the surface of separation.
Question 4:
The index of refraction of a medium is a measure of:
Explanation: The correct answer is A) The speed of light in the medium. The index of refraction of a medium is a measure of how much slower light travels in that medium compared to its speed in a vacuum. It is defined as the ratio of the speed of light in a vacuum to the speed of light in the medium.
Question 5:
When light travels from a medium with a lower refractive index to a medium with a higher refractive index, it:
Explanation: The correct answer is A) Bends towards the normal. When light travels from a medium with a lower refractive index to a medium with a higher refractive index, it bends towards the normal, i.e., it refracts towards the perpendicular line drawn to the surface of separation.