次の段落に基づいて質問を生成する
- The Heisenberg uncertainty principle states that it is impossible to know both the position and momentum of a particle with absolute precision.
- The Planck constant is a fundamental constant of nature that relates the energy of a photon to its frequency.
1. ハイゼンベルグの不確定性原理とは何ですか？
2. プランク定数とは何ですか？