Can someone answer the question i don’t want the google search answer because i know but i want the your answer if i get google answer i will report so u don’t get points

it becomes hotter because black things heat up and get warmer quicker, where as lighter things just absorb the heat and then it goes away.

diagram is missing, but i will try to explain your doubt.

answer:

amplitude is the maximum displacement or distance moved on a point of a vibrating body or wave measured from its equilibrium position.it is equal to half the length of vibration path.