Class 7 | Science and Technology | chapter 7 | Energy in daily life | 7.3 Wave |

Class 7 | Science and Technology | chapter 7 | Energy in daily life | 7.3 Wave |
chapters:
✓ 7.1 उर्जा (Energy) = नवीकरणीय र अनवीकरणीय उर्जा, वैकल्पिक उर्जा, उर्जा बचत गर्ने तारका
✓ 7.2 ताप र तापक्रम (Heat and Temperature)= तापक्रम, थर्मोमिटर, प्रयोगशाला थर्मोमिटर, तापक्रमका एकाई, ताप र तापक्रमको सम्बन्ध
✓ 7.3 तरङ्ग (wave) = तरङ्गका प्रकार ट्रान्सभसर तरङग,
लङगिच्युडिनल तरङ्ग, तरङ्गसँग सम्बन्धित केही पदहरू ✓ 7.4 प्रकाश (light) = प्रकाशको परावर्तन, प्रकाशको परावर्तन को नियम
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