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

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:) Mathistillfun
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37 answers (A Helpful Person)
I understand that the drawing is wrong however can someone help me out with q4a
snell
Snell
1 month ago
Promise Chye said:
The diagram is incorrect is it because there should be a weak reflected ray internally before the emergent ray?

nope

hints:
1. what is the critical angle value for the glass block?

2. what is the angle of incidence at side KL?

3. what phenomenon would occur at side KL?
:) Mathistillfun
:) Mathistillfun
1 month ago
Total internal Reflection
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:) Mathistillfun
1 month ago
Thanks a lot!!
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:) Mathistillfun
1 month ago
No wonder they said hence or otherwise draw the arrows representing light rays
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:) Mathistillfun
1 month ago
The previous question calculating the critical angle
:) Mathistillfun
:) Mathistillfun
1 month ago
However I need help for the open ended question 4a) please thank you