Refraction Of Light At Curved Surfaces Class 10th Physics & Chemistry AP Board Solution

Class 10th Physics & Chemistry AP Board Solution
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  1. A man wants to get a picture of a zebra. He photographed a white donkey after fitting a…
  2. Two converging lenses are to be placed in the path of parallel rays so that the rays…
  3. The focal length of a converging lens is 20 cm. An object is 60 cm from the lens. Where…
  4. A double convex lens has two surfaces of equal radii ‘R’ and refractive index n 15. Find…
  5. Write the lens maker's formula and explain the terms in it. (AS1)…
  6. How do you verify experimentally that the focal length of a convex lens is increased when…
  7. How do you find the focal length of a lens experimentally? (AS1)
  8. Harsha tells Siddhu that the double convex lens behave like a convergent lens. But Siddhu…
  9. Assertion (A): A person standing on the land appears taller than his actual height to a…
  10. A convex lens is made up of three different materials as shown in the figure Q-10. How…
  11. Can a virtual image be photographed by a camera? (AS2)
  12. You have a lens suggest an experiment to find out the focal length of the lens. (AS3)…
  13. Let us assume a system consist of two lenses with focal length f1 and f2 respectively. How…
  14. Collect the information about the lenses available in an optical shop. Find out how the…
  15. Collect the information about lenses used by Galileo in his telescope. (AS4)…
  16. Use the data obtained by activity-2 in table-1 of this lesson and draws the graphs of u vs…
  17. Figure Q-17 shows ray AB that has passed through a divergent lens. Construct the path of…
  18. Figure Q- 18 shows a point light source and its image produced by a lens with an optical…
  19. Find the focus by drawing a ray diagram using the position of source S and the image S’…
  20. A parallel beam of rays is incident on a convergent lens with a local length of 40cm.…
  21. Object is placed at C2 Draw a ray diagram for the following positions and explain the…
  22. Object is placed between F2 and optic centre P. (AS5) Draw a ray diagram for the following…
  23. How do you appreciate the coincidence of experimental facts with the results obtained by a…
  24. Find the refractive index of the glass which a symmetrical convergent lens of its focal…
  25. Find the radii of curvature of a convexo- concave convergent lens made of glass with…
  26. The distance between two point sources of light is 24cm .Where should a convergent lens…
  27. Suppose you are inside the water in a swimming pool near an edge. A friend is standing on…

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Question 1.

A man wants to get a picture of a zebra. He photographed a white donkey after fitting a glass with black stripes on to the lens of his camera. What photo will he get? Explain. (AS1)


Answer:

• The man will get the photograph of a white donkey with less intensity. Moreover, the whole photograph will have black strips instead of only the body of the donkey.

• The black strips will block the light coming from the object. Thus, refraction will take place only where the lens is clear. Thus, providing a very hazy image.


• The photograph will look like the picture below.