Den waste time keep erasing and changing ans.

The qn was on Total Internal Reflection.

Though only nid use Glass Block and Optical Pins.

I drew from 30degrees to 70degrees

Den becos I drew in portrait format of de paper

And also traced the glass block in the middle of the paper,

My 70degrees ray and the emergent ray cannot converge!
Suppose to converge den find de angle..

The rays juz go OFF the paper cannot converge unless i paste extra paper @ de side.

Den no choice I juz see the trend and write my 70degrees de ans value.

I calculated gradient oso calculate wrongly!
My gradient off de ans alr...
David Pro of Phy Practical ans was -2
Mine is -1.65 is FAR off the range...

Wads more I din write the 'k' value.

My Physics O LEVELS SPA fail le...

I can never go JC or Poly!! (I know i still can)
But I don't deserve to go there at all!
I wanna cry.