How do different components of the computer communicate with each other?

In Young's double-slit experiment using monochromatic light of wavelength $\lambda$, the intensity of light at a point on the screen where path difference is $\lambda$, is $K$ units. What is the intensity of light at a point where path difference is $\lambda / 3$ ?

The correct version is:

Which of the following statements is not true for plasma membrane?

(a) It is present in both plant and animal cells.

(b) Lipids are present as a bilayer in it.

(c) Proteins are present integrated as well as loosely associated with the lipid bilayer.

(d) Carbohydrates are never found in it.

Explain why (or how):

(a) in a sound wave, a displacement node is a pressure antinode and vice versa,

(b) bats can ascertain distances, directions, nature, and sizes of the obstacles without any "eyes",

(c) a violin note and sitar note may have the same frequency, yet we can distinguish between the two notes,

(d) solids can support both longitudinal and transverse waves, but only longitudinal waves can propagate in gases, and

(e) the shape of a pulse gets distorted during propagation in a dispersive medium.

Among the ecosystem services are control of floods and soil erosion. How is this achieved by the biotic components of the ecosystem?