:) Mathistillfun's answer to :) Mathistillfun's Secondary 1 Maths Singapore question.

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:) Mathistillfun
:) Mathistillfun's answer
37 answers (A Helpful Person)
I need help with question d
snell
Snell
1 month ago
Promise Chye said:
There will be no refraction when the incident ray is not deviated in other words the angle of incidence is zero at the water air boundary

this is one is close, but not complete

where shld the fish be for the above to be true?

no need for fish to jump out of water.

u still cannot figure it out, click this link:
https://www.physicsclassroom.com/class/refrn/Lesson-1/If-I-Were-an-Archer-Fish

bottom of page
snell
Snell
1 month ago
Promise Chye said:
But if its right below the insect it could easily just catch it but the fish is not that smart tho


bingo! u got it!

btw, the qn does not ask u if the fish is that smart or not

anyway, in reality, the hit rate for archer fish is almost 100%, even for an angle of deviation of up to 40 deg.
:) Mathistillfun
:) Mathistillfun
1 month ago
Thanks a lot!