लेन्सको बाक्लोपना र केन्द्रीकरण दुरीबिच के सम्बन्ध हुन्छ ? What is the relationship between thickness and focal length of a lens?
SEE Class 10 Science · 2082 · Solved Question with Answer
लेन्सको बाक्लोपना र केन्द्रीकरण दुरीबिच के सम्बन्ध हुन्छ ?
What is the relationship between thickness and focal length of a lens?
