SC-459
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 why the light ray bends?
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.
- The light changes speed when it enters glass from air.
- The light reflects completely at the surface of the glass.
- The light source becomes dimmer when shining through glass.
- The normal line pushes the light ray towards the glass.
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