Chapter 25: Q43PE (page 931)
How far from a piece of paper must you hold your father’s 2.25 Dreading glasses to try to burn a hole in the paper with sunlight?
Short Answer
The focal point to burn a hole in the paper with sunlight isf=444mm.
Chapter 25: Q43PE (page 931)
How far from a piece of paper must you hold your father’s 2.25 Dreading glasses to try to burn a hole in the paper with sunlight?
The focal point to burn a hole in the paper with sunlight isf=444mm.
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