- #1
Eveflutter
- 14
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Fairly simple question I'd like someone to help with please. My teacher has me confused so I figured I'd turn to the forums for help.
1. Alright, so in an exam we had a ray diagram to draw. "Complete the ray diagram shown in Figure 6" they said (I sketched a replica * thumbs up* hongjinyoungreferenceimsorry):
Alrighty. (No relevant equations so I'm jumping to step three)3. I attempted it because, you know, it was an exam. I drew these emerging rays in yellow:
However, after the exam, I realized I drew it wrong? The lens seemed to be a diverging one so I sulked thinking that I'd get it wrong. I reattempted all the questions in the exam at home and I drew this for this particular question:
Since the lens seems to be divergent, the rays should diverge, no?
But no! I received my exam paper and my teacher marked the exam ray diagram correct and gave me the two marks that came with it.
So I'd really appreciate it if someone would deliver me from this time of confusion. Does that really represent a diverging lens so the third picture is correct? Or is it a converging lens so that the second picture is correct?
Thanks in advance!
1. Alright, so in an exam we had a ray diagram to draw. "Complete the ray diagram shown in Figure 6" they said (I sketched a replica * thumbs up* hongjinyoungreferenceimsorry):
Alrighty. (No relevant equations so I'm jumping to step three)3. I attempted it because, you know, it was an exam. I drew these emerging rays in yellow:
However, after the exam, I realized I drew it wrong? The lens seemed to be a diverging one so I sulked thinking that I'd get it wrong. I reattempted all the questions in the exam at home and I drew this for this particular question:
Since the lens seems to be divergent, the rays should diverge, no?
But no! I received my exam paper and my teacher marked the exam ray diagram correct and gave me the two marks that came with it.
So I'd really appreciate it if someone would deliver me from this time of confusion. Does that really represent a diverging lens so the third picture is correct? Or is it a converging lens so that the second picture is correct?
Thanks in advance!