Task id10089
Seller: nerdmavr
Price: 0.15 USD
Available. The final price depends on the selected options and is checked before payment.
Product description
Two light bulbs placed side by side illuminate the screen. The distance from the light bulbs to the screen is 1 m. One light bulb was turned off. How much closer do you need to move the screen so that its illumination does not change?
Additional information
Detailed solution. Format png