IDNStudy.com, kung saan ang iyong mga tanong ay may malinaw at konkritong sagot. Makakuha ng mabilis at eksaktong sagot sa iyong mga tanong mula sa aming mga eksperto na laging handang tumulong.

18. During the boy scouts camping and use a magnifying lens to produce fire what type of lens is used to produce fire?

A. diverging lens
B. concave lens
C. converging lens
D. plane lens ​


Sagot :

Answer:

B. concave lens

Explanation:

Among the first known tools made to harness the power of the Sun are Yangsui burning mirrors, made in Ancient China, around 3,000 years ago. Like a magnifying lens these concave bronze mirrors reflected and focused the Sun's rays to a specific point. On a bright sunny day this produced enough heat to start a fire.