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Q.4. A luminous source is placed at a distance of 10 cm from a negative lens...

Q.4. A luminous source is placed at a distance of 10 cm from a negative lens of focal length 20 cm. A negative mirror of focal length 20 cm is placed behind the negative lens at a distance of 40 cm.

  1. Draw the ray diagrams and locate the position and magnification of the images.
  2. Use mathematical equations to prove that your calculations of part (a) are accurate to within 13%

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