Physics, asked by divyakanotra, 6 months ago

Why black marks often appear on the ceiling or wall above the lamp?

Answers

Answered by sarthukadlag
5

Answer:

Due to electricity and light in bulbs heat is conducted. The heat causes the ceiling or wall above the lamp to burn which makes a black mark appear on the ceiling or wall above the lamp

Answered by dolly2861
0

Explanation:

this is due to the updraft of air currents created by the heat of the light bulb

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