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What device other than a plane mirror ca...

What device other than a plane mirror can be used to turn a ray of light through `180^(@)` ? Draw a diagram in support of your answer. Name an instrument in which this device is used.

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ICSE-REFRACTION OF LIGHT AT PLANE SURFACES-EXERCISE-4(D)
  1. Fill in the blanks: Q: Critical angle is the angle of in denser medi...

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  2. State whether the following statement is true or false ? If the angle ...

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  3. The refractive index of air with respect to glass is expressed as ""(g...

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  4. Figure alongside shows two rays A and B travelling from water to air. ...

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  5. Figure shows a point source P inside a water container. Three rays A,B...

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  6. In figure, PQ and PR are the two light rays emerging from an object P....

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  7. The refractive index of glass is 1*5 from a point P inside a glass sla...

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  8. A ray of light enters a glass slab ABCD as shown in figure and strikes...

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  9. What is a total reflecting prism ? State three actions that it can pro...

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  10. Show with the help of a diagram how a total reflecting prism can be us...

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  11. A ray of light XY passes through a right angled isosceles prism as sho...

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  12. Draw a diagram of a right angled isoscels prism which is used to make ...

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  13. In figure, a ray of light PQ is incident normally on the hypotenuse of...

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  14. In figure, a ray of light PQ is incident normally on the face AB of an...

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  15. Copy the diagram given below and complete the path of the light ray ti...

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  16. Draw a neat labelled ray diagram to show total internal reflection of ...

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  17. (a) Figure shows two isosceles right angled prisms A and B and the lig...

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  18. What device other than a plane mirror can be used to turn a ray of lig...

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  19. Mention one difference between reflection of light from a plane mirror...

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  20. State one advantage of using a total reflecting prism as a reflector i...

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