the thin lens has a focal lengthf= 12cm.it is convex or concave lens
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3
Answer:
convex
Explanation:
it is convex because the length is 12 cm and if we measured the 12 cm in angle it will come below 180 degrees hence it is convex
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Answered by
0
Answer:
since focal lenght of convex lens is positive
ans focal lenght of cancave is negative
therefire,
this is convex lens
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