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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 :

SophiaBasistaidn

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.