SC-464
Refraction
Lower Sec Science · Secondary 1 · Hard · Refraction
A student shines a light ray from air into a glass block. The ray bends towards the normal as it enters the glass. Which statement best explains this bending of light?
A normal is an imaginary line drawn at right angles to the surface.
A normal is an imaginary line drawn at right angles to the surface.
- Light slows down when it enters a denser medium, causing it to refract towards the normal.
- Light speeds up when it enters a denser medium, causing it to refract towards the normal.
- Light reflects off the surface instead of entering the glass, so it appears to bend.
- Light spreads out in all directions when it hits the surface, so one ray seems to bend.
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