किसी गोलीय दर्पण की फोकस दूरी 15 cm है तो उसकी वक्रता त्रिज्या होगी-
a. 30 cm
b. 15 cm
C. 10 cm
d. 7.5 cm
Answers
Answered by
2
Answer:
d. 7.5 cm
if 15 cm is diameter
then we find out radius
r = d/2
=15÷2
=7.5 cm
Similar questions
Accountancy,
1 month ago
History,
2 months ago
Math,
2 months ago
Science,
9 months ago
Math,
9 months ago