Draw a labelled ray diagram to show how a ray of light passes through a parallel sided glass block:

(a) if it hits the glass block at 90° (that is, perpendicular to the glass block)
(b) if it hits the glass block at an angle other than 90° (that is, obliquely to the glass block).

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Solution

(a) If the light ray hits the glass block at 90° (that is, perpendicular to the glass block):

(b) If it hits the glass block at an angle other than 90° (that is, obliquely to the glass block):

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Draw a labelled ray diagram to show how a ray of light passes through a parallel sided glass block: (a) if it hits the glass block at 90° (that is, perpendicular to the glass block) (b) if it hits the glass block at an angle other than 90° (that is, obliquely to the glass block).

(a) If the light ray hits the glass block at 90° (that is, perpendicular to the glass block): (b) If it hits the glass block at an angle other than 90° (that is, obliquely to the glass block):

Draw a labelled ray diagram to show how a ray of light passes through a parallel sided glass block:

(a) if it hits the glass block at 90° (that is, perpendicular to the glass block)
(b) if it hits the glass block at an angle other than 90° (that is, obliquely to the glass block).

(a) If the light ray hits the glass block at 90° (that is, perpendicular to the glass block):

(b) If it hits the glass block at an angle other than 90° (that is, obliquely to the glass block):