Science, asked by rajputrenu932, 3 months ago

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 Janu024
2

Answer:

d. 7.5 cm

if 15 cm is diameter

then we find out radius

r = d/2

=15÷2

=7.5 cm

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