K.C.S.E Physics Q & A - MODEL 2019PP1QN02
​Figure 1 shows a defective straw used to suck milk from a glass.
​It was observed that upon sucking the straw, milk did not rise up the straw. Explain this observation.
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K.C.S.E Physics Q & A - MODEL 2014PP2QN12
​Draw a ray diagram to show how a ray of light may be totally internally reflected two times in an isosceles right - angled glass prism. (Assume that the critical angle of glass is 42°)
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K.C.S.E Physics Q & A - MODEL 2008PP2QN16
​(a) State two conditions necessary for total internal reflection to occur
(b) Figure 9 shows a ray of light incident on the boundary between two media 1 and at an angle 
​Show that the refractive index for a ray of light traveling from medium 1 to medium 2 is given by:
M2 = 1/Sin θ (c) Figure 10 shows a ray of light incident on one face of a block of ice of refractive index 1. 31 and totally reflected at the adjacent face 
​Determine
(i) Angle Φ (ii) Angle x (iii) Angle θ, the greatest angle for which the total internal reflection is possible
answers
K.C.S.E Physics Q & A - MODEL 2003PP1QN15
​One of the conditions for total internal reflection to occur is that angle of incidence must be greater than the critical angle of the medium. State the other condition
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K.C.S.E Physics Q & A - MODEL 2003PP1QN08
​ Figure 6 shows a ray of light being reflected from a mirror.
What is the angle of reflection?
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M.A NyamotiMy passion is to see students pass using right methods and locally available resources. My emphasis is STEM courses |
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