请在右方横线处 写出下列 词或 词组 对应 的汉语 意思 1.angle of incidence______________ 2.hemisphere______________ 3.photoelectric effect______________ 4.shed light on______________ 5. transverse wave__________________________________ 6. wave front ___________________________ 7.dual nature___________________ 8.intensity of light ________________ 9.index of refraction ________________ 10. principle of superposition ______________