Question
At what point in time would the speed of light decrease?
A.
when the light travels from glass to water
B.
when the light travels from air to water
C.
when the light travels from water to air
D.
when the light travels from glass to air
A.
when the light travels from glass to water
B.
when the light travels from air to water
C.
when the light travels from water to air
D.
when the light travels from glass to air
Answers
Answered by
GPT-4o mini
The speed of light decreases when it travels from a medium with a lower refractive index to a medium with a higher refractive index.
Among the options provided, the point at which light travels from air to water (option B) involves moving from a medium with a lower refractive index (air) to a medium with a higher refractive index (water), thus causing the speed of light to decrease.
So, the correct answer is:
**B. when the light travels from air to water**
Among the options provided, the point at which light travels from air to water (option B) involves moving from a medium with a lower refractive index (air) to a medium with a higher refractive index (water), thus causing the speed of light to decrease.
So, the correct answer is:
**B. when the light travels from air to water**