DPP – 10S91 REFLECTION RAY DIAGRAM & NUMERICALS

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DPP-10S91

 REFLECTION RAY DIAGRAM & NUMERICALS

 

1. An object, 2 cm in size, is placed at 25.0 cm in front of a concave mirror and is of focal length 10 cm. At what distance from the mirror should a screen be placed in order to obtain a sharp image? Find the nature and size of image.

 

2. A concave mirror produces three times magnified (Enlarged) real image of an object placed at 10 cm in front of it. Where is the image located?

 

3. The magnification produced by a plane mirror is +1. What does this mean?

 

4. An object 5 cm in length is placed at a distance of 20 cm in front of a convex mirror of radius of curvature 30 cm. Find the position of the image, its nature and size.

 

5. A convex mirror used on a bus has a focal length of 200 cm. If a scooter is located at 100 cm from this mirror, find the position, nature and magnification of the image formed in the mirror.

 

6. An object of size 7.0 cm is placed at 27 cm in front of a concave mirror of focal length 18 cm. At what distance from the mirror should a screen be placed, so that a sharp focused image can be obtained? Find the size and the nature of the image.

 

7. Draw the ray diagram of the following situations

  • Object at INFINITY
  • Btw C and F
  • At C
  • Btw pole and infinity  (Convex)
  • Btw pole and focus
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