The best set-up of pins for the incident ray to trace the path of a ray of light through a rectangular glass slab is represented in the figure
The best set-up of pins for the incident ray to trace the path of a ray of light through a rectangular glass slab is represented in the figure
Options
Official answer
The best set-up of pins for the incident ray to trace the path of a ray of light through a rectangular glass slab is represented in figure I.
Marking scheme
- 1.1 mark for correct answer
Hint
The correct answer is figure I because it shows the incident ray entering the glass slab at a certain angle and being refracted, or bent, as it passes through the glass. The refracted ray then exits the glass slab at a different angle, and the pins are arranged to show this change in direction.
Quick oral answer
The correct answer is figure I because it shows the incident ray entering the glass slab at a certain angle and being refracted, or bent, as it passes through the glass. The refracted ray then exits the glass slab at a different angle, and the pins are arranged to show this change in direction.
Common mistakes
- 1.thinking that the incident ray passes straight through the glass slab without being refracted
- 2.not realizing that the refracted ray exits the glass slab at a different angle
Analysis and explanation
The correct answer is figure I because it shows the incident ray entering the glass slab at a certain angle and being refracted, or bent, as it passes through the glass. The refracted ray then exits the glass slab at a different angle, and the pins are arranged to show this change in direction.
Interesting facts
the angle of refraction depends on the angle of incidence and the refractive indices of the two media
the refractive index of a medium is a measure of how much it bends light
Question details
Q29 of 41 questions
- Board
- CBSE
- Class
- Class 10
- Subject
- Science
- Year
- 2011
- Section
- Section B
- Marks
- 1
- Type
- MCQ
- Chapter
- Light — Reflection and Refraction
- Topic
- Refraction
- Bloom's level
- Remembering
- Syllabus topic
- Refraction through a rectangular glass slab
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Frequently asked questions
How many marks does this question carry in CBSE Class 10 Science 2011?
This question carries 1 mark in the CBSE Class 10 Science 2011 examination.
Which chapter does this question come from in Science?
This question is from the chapter "Light — Reflection and Refraction" in the CBSE Class 10 Science syllabus.
What topic does this question cover in Science?
This question covers the topic "Refraction" from CBSE Class 10 Science.
What type of question is this in the CBSE Class 10 Science 2011 paper?
This is a MCQ question from Section B in the CBSE Class 10 Science 2011 paper.