Task 40287.
The distance from the light bulb to the screen on an optical bench 1 m. What is the distance from the light bulb you need to put a converging lens with a focal length of 24 cm, to get a sharp image on the screen light bulbs?
Detailed solution with a short recording conditions, laws and formulas used in the decision, the withdrawal of the calculation formula and the answer.
If you have any questions about the decision to write. I try to help.
No customer reviews yet.