COMEDK · Physics · 25. Ray Optics
A beam of incident parallel light falls on a diverging lens of focal length 20 cm in magnitude. If a converging lens of focal length 15 cm in magnitude is placed at a distance of 10 cm to the right of the diverging lens on the other side, then, the final image formed is:
- A Virtual and is at a distance of 40 cm to the right of the diverging lens.
- B Real and is at a distance of 40 cm to the right of the converging lens.
- C Real and is at a distance of 30 cm to the right of the converging lens.
- D Virtual and is at a distance of 30 cm to the right of the converging lens.
Answer & Solution
Correct Answer
(C) Real and is at a distance of 30 cm to the right of the converging lens.
Step-by-step Solution
Detailed explanation
For the diverging lens, the focal length \(f_1 = -20\) cm. Since the incident light is parallel, the rays appear to diverge from the focus of the diverging lens located at \(20\) cm to the left of the lens. The image formed by the first lens acts as the object for the second…
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