Question

1. the phenomenon that produces more than one image of an object by use of two plane mirrors
2. cells present in eyes responsible for colour detection
3. type of lens present in the eye
4. point of no cones or rods present on the retina in the eye
5. the vision defect that the person suffers from if he finds it difficult to see far away objects
Short answer questions.
1. What is reflection of light? How is it different from transmission of light?
2. A ray of light incident on a surface makes a 30° angle with the surface. Calculate the angle of incidence and
the angle of reflection.
3. List five characteristics of the image formed by a plane mirror.
4. Explain how reflection phenomenon helps us to visualise the objects around us.
5. What do you mean by multiple reflections? Give some examples where it helps us. 180
6. What is a kaleidoscope? What is its use? 187
7. What do you mean by dispersion of light? Give examples of dispersion of sunlight.
3. Draw a well-labelled diagram of the structure of human eye. 182
. What are rods and cones? Explain their utility. 182
. How can one take care of their eyes? 184
ong answer questions.
- State and explain the two laws of reflection.
- Describe an experimental method to verify the laws of reflection.
What are regular and diffused reflections? Draw a diagram to show that both types of reflections follow the
laws of reflection.
187
What are the main parts of human eye? Explain their functioning.
cribe the Braille system that helps such people to​

Answer 1

Answer:

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