The cooling find are there to keep the temperature low. They are mostly black in color, and hence, radiate heat, which is how the temperature is controlled.
Answer:
Explanation:
According to Wein's displacement law

Where b = 2.898 x 10⁻³ m K
Given ,

T = 161 X 10³ K.
Answer:
When the polythene rod is rubbed with the woolen cloth, static electric charges move from the cloth and into the rod. The rod becomes negatively charged as negative charges move from the cloth and into the rod leaving the cloth positively charged as well.
its C because i just anwserd it & it was right