Class 7 science chapter 7 | Science and Technology Class 7 | Energy in daily life | 7.1 Energy

Class 7 science chapter 7 | Science and Technology Class 7 | Energy in daily life | 7.1 Energy | solution

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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