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Date May 2018 Marks available 1 Reference code 18M.1.HL.TZ1.13
Level Higher level Paper Paper 1 Time zone 1
Command term Question number 13 Adapted from N/A

Question

A ray of light passes from the air into a long glass plate of refractive index n at an angle θ to the edge of the plate.

                               M18/4/PHYSI/HPM/ENG/TZ1/13_01

The ray is incident on the internal surface of the glass plate and the refracted ray travels along the external surface of the plate.

What change to n and what change to θ will cause the ray to travel entirely within the plate after incidence?

M18/4/PHYSI/HPM/ENG/TZ1/13_02

Markscheme

A

Examiners report

[N/A]

Syllabus sections

Core » Topic 4: Waves » 4.4 – Wave behaviour
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