If a wave has a period of 0.077 sec, it has a frequency of?

Based on the concept of the wave-like nature of light, huygens' theory of light postulates that the more light was "bent" by a substance the slower it would move while traversing across that substance. a) deflection b) interference c) refraction d) resonance

If you put a helium-filled balloon in the refrigerator, what will happen?

What causes the development of most clouds and precipitation in the atmosphere?