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Fill in the blanks Night birds have ……...

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Night birds have ……………cones than rods in their eyes.

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NAND LAL PUBLICATION-LIGHT-EXERCISES
  1. Suppose you are in a dark room. Can you see objects in the room? Can y...

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  2. Differentiate between regular and diffused reflection. Does diffused r...

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  3. Mention against each of the following whether regular or diffused refl...

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  4. State the laws of reflection.

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  5. Describe an activity to show that the incident ray, the reflected ray,...

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  6. Fill in the blanks in the following: A person 1 m in front of a pla...

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  7. Fill in the blanks If you touch your ………ear with right hand in front...

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  8. Fill in the blanks The size of pupil becomes………… when you in dim lig...

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  9. Fill in the blanks Night birds have ……………cones than rods in their ey...

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  10. Describe the construction of a Kaleiodeoscope.

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  11. Draw a labelled sketch of the human eye.

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  12. Gurmit wanted to perform activity 16.8 using a laser torch . Her teach...

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  13. Explain how can you take care of your eyes.

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

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  15. How many images of a candle will be formed if it is placed between two...

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

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  17. Bhooja stands at A just on the side of a plane mirror as shown in figu...

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  18. Find out position of the image of an object situated at A in the plane...

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  19. When Paheli moves from B to C, where does the image of A move?

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