18.1 Write relation between radius of curvature and focal length.
18.2 For which type of mirrors above relation is verified?
18.3 The size of the aperture should be?
a. Small
b. Large
c. Neither Small nor Large
d. None of these
18.4. Principal focus of a spherical mirror is lies
a) midway between the pole and centre of curvature
(b) near the pole
EEE [1] [1]
[1]
(c) near the centre of curvature
(d) None of these
Answers
Answered by
1
Answer:
18.1, R=2f
18.2, R= spherical lenses
18.3, small
18.4, a, midway of R and P
Answered by
1
Answer:
Mark as brainlist.
18.1, R=2f
18.2, R=sphercial lenses
18.3, small
18.4, a, midway of R and P.
Explanation:
please mark as brainlist.
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