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Gurmit wanted to perform Activity 16.8 u...

Gurmit wanted to perform Activity 16.8 using a laser torch. Her teacher advised her not to do so. Can you explain the basis of the teacher's advice?

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MBD -HARYANA BOARD-LIGHT-EXAMPLE
  1. Describe the construction of a kaleidoscope.

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  2. Draw a labelled sketch of the human eye. Explain the functions of each...

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  3. Gurmit wanted to perform Activity 16.8 using a laser torch. Her teache...

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  4. Explain how you can take care of your eyes

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  5. What is the angle of incidence of a ray if the reflected ray is at an ...

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  6. Two mirrors meet at right angles. A ray of light is incident on one at...

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  7. The plane and polished surface that returns lightr falling on it in th...

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  8. How many colours are present in white sunlight?

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  9. What is the most convenient distance for reading by a normal eye?

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  10. Fill in the blank in The size of the pupil becomes when you see in...

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  11. What is the Phenomena of splitting of light into its constituent colou...

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  12. The eye lenses focuses:

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  13. How can you see an object in the dark?

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  14. It is what that helps us to see objects?

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  15. Name any two Luminous bodies.

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  16. Moon appears bright at night. Is it a luminous or non-luminous body ?

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  17. Where is a reflection seen?

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  18. Which surface can act as a mirror?

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  19. If you are standing in front of a mirror and observing your own image ...

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  20. What is the angle of reflection, when a ray of light is incident norma...

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