1.

एक गोलीय दर्पण की वक्रता-त्रिज्या 20 cm है । इसकी फोकस दूरी क्या होगी ?

Answer»

ANSWER:

f =  \frac{r}{2 }  \\ f =  \frac{20}{2} \\ f = 10  \: cm

HOPE it HELPS you

plZ MARK me brainlist ✌️✌️✌️



Discussion

No Comment Found

Related InterviewSolutions