(a) List two causes of hypermetropia. (b) Draw ray diagrams showing (i) a hypermetric eye and (ii) its correction using suitable optical device.
(a) List two causes of hypermetropia. (b) Draw ray diagrams showing (i) a hypermetric eye and (ii) its correction using suitable optical device.
Official answer
The colour of scattered light is related to the size of the scattering particle. The smaller the particle, the more it scatters shorter wavelengths of light, such as blue and violet. The larger the particle, the more it scatters longer wavelengths of light, such as red and orange.
Marking scheme
- 1.The colour of scattered light is related to the size of the scattering particle.
- 2.The smaller the particle, the more it scatters shorter wavelengths of light, such as blue and violet.
- 3.The larger the particle, the more it scatters longer wavelengths of light, such as red and orange.
Hint
The colour of scattered light is related to the size of the scattering particle.
Quick oral answer
The colour of scattered light is related to the size of the scattering particle. The smaller the particle, the more it scatters shorter wavelengths of light, such as blue and violet. The larger the particle, the more it scatters longer wavelengths of light, such as red and orange.
Common mistakes
- 1.The colour of scattered light is not related to the size of the scattering particle.
- 2.The colour of scattered light is only related to the wavelength of light.
Analysis and explanation
The colour of scattered light is related to the size of the scattering particle. The smaller the particle, the more it scatters shorter wavelengths of light, such as blue and violet. The larger the particle, the more it scatters longer wavelengths of light, such as red and orange.
Interesting facts
The colour of scattered light is related to the size of the scattering particle.
The smaller the particle, the more it scatters shorter wavelengths of light, such as blue and violet.
The larger the particle, the more it scatters longer wavelengths of light, such as red and orange.
Question details
Q24 of 45 questions
- Board
- CBSE
- Class
- Class 10
- Subject
- Science
- Year
- 2020
- Section
- Section B
- Marks
- 3
- Type
- Short Answer
- Chapter
- The Human Eye and the Colourful World
- Topic
- Refraction of Light
- Bloom's level
- Remembering
- Syllabus topic
- Refraction of Light through a Prism
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Frequently asked questions
How many marks does this question carry in CBSE Class 10 Science 2020?
This question carries 3 marks in the CBSE Class 10 Science 2020 examination.
Which chapter does this question come from in Science?
This question is from the chapter "The Human Eye and the Colourful World" in the CBSE Class 10 Science syllabus.
What topic does this question cover in Science?
This question covers the topic "Refraction of Light" from CBSE Class 10 Science.
What type of question is this in the CBSE Class 10 Science 2020 paper?
This is a Short Answer question from Section B in the CBSE Class 10 Science 2020 paper.