The diagram below shows a wave with its wavelength indicated in red. wavelength

What will happen to the wave's frequency if its wavelength is made twice as long?

A. It will stay the same.

B. It will go to zero

C. It will double.

D. It will decrease

answer is D.it will decrease

layers of the earth affect the waves and these effects are seen on instruiments such as seimometers

the order for strong to weak forces such as

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

the fundamental forces are those forces that act between to objects or element to make interactions. there are four types of fundamental forces such as strong and weak nuclear forces (due to protons and electrons), electromagnetic force (due to the motion of electrons) and gravitational force (due to orbital movement of the planet). if these forces are arranged on the basis of their maximum strength then the order is

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force