maddygroves7576 maddygroves7576
  • 08-05-2024
  • Physics
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A thin converging lens of focal length 20 cm and a diverging lens of focal length 15 cm are placed in contact. What is the focal length of the combined lens system?
a) 35 cm
b) 30 cm
c) 12 cm
d) 5 cm

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