An object is placed 20 cm from a convex lens and gives an image 80 cm from the lens. Calculate the focal length of the lens.
University of Ilorin PHY108 2023 past question
- 16 cm
- 20 cm
- 25 cm
- 10 cm
Register free to see the answer and step-by-step explanation
More University of Ilorin PHY108 2023 past questions
Related questions
- What is the relationship between the frequency and the length of a vibrating wire?
- A graph of (E−V)⁻¹ was plotted against I⁻¹, which gave a constant of 4.24 AV⁻¹. What is the value of the internal resistance?
- A graph of the ratio of image size to object size (magnification) was plotted against the image distance (v). Which of the following is tru…
- An experiment was conducted using a liquid, lens, metre rule, vernier caliper, and retort stand. Which of the following is to be determined?
- The focal length of a lens is defined as:
- Which of the following errors must be avoided to ensure accuracy in a simple microscope experiment?
