Definition

Examples

• 光线从空气射入水中时，入射角会发生变化。
  Guāngxiàn cóng kōngqì shè rù shuǐ zhōng shí, rù shè jiǎ huì fāshēng biànhuà.
  When light goes from air into water, the angle of incidence changes.
• 反射角等于入射角。
  Fǎn shè jiǎo děng yú rù shè jiǎ.
  The angle of reflection equals the angle of incidence.
• 在这个实验中，我们需要测量入射角。
  Zài zhège shíyàn zhōng, wǒmen xūyào cèliáng rù shè jiǎ.
  In this experiment, we need to measure the angle of incidence.