Question
Easy
When a ray of light enters from medium A to medium B, its speed decreases and on further entering into medium C, its speed increases. Which of the following conclusions can be drawn from this ?
1
Refractive index of A, B, C cannot be compared from above information
2
Refractive index of A is more than B and C
3
Refractive index of A is less than B but equal to C
4
Refractive index of A and C are less than B
Question Details
Time to Solve: 12
Exam: CTET
Level/Paper: CTET_P2
Chapter: Light
Topic: Refraction
Correct Answer
Option D
Explanation
When a ray of light travels from one medium to another, its speed changes depending on the refractive index of the mediums involved. The refractive index is a measure of how much the speed of light is reduced inside a medium compared to the speed of light in a vacuum. A higher refractive index indicates that light travels more slowly in that medium. ### Explanation for Option 4: **Option 4:…Read More
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