On a sunny day, what harm can water droplets do to plant flies?

On a sunny day, what harm can water droplets do to plant flies? The focal lengths of the three lenses are 1.25m; 0.5m; 0.04m. What is the power of each lens?

1). Since water droplets falling on plant leaves on a sunny day are in the form of lenses, they collect solar energy on the skin, causing burns. t₁t₂₃

2). It is known from the problem statement that the focal lengths of the three lenses are equal: F₁ = 1.25 m; F₂ = 0.5 m; F₃ = 0.04 m. To determine what is the optical power of each lens, we will use the definition of this concept:

D₁ = 1 / F₁; D₂ = 1 / F₂; D₃ = 1 / F₃.

Substitute the values ​​of the quantities into the calculation formula, we get:

D₁ = 1 / 1.25 m; D₁ = 0.8 diopters;

D₂ = 1 / 0.5 m; D₂ = 2 diopters;

D₃ = 1 / 0.04 m; D₃ = 25 diopters.

Answer: the optical power of the three lenses is 0.8 diopters; 2 diopters; 25 diopters.