A concave mirror and a converging lens (glass
with u == 1.5) both have a focal length of 3 cm
4
when in air. When they are in water
3
a
their new focal lengths are
flens = 12 cm. fMirror = 3cm
(b) flens = 3 cm. fMirror = 12cm
(c) flens = 3 cm. fMirror = 3cm
(d) flens = 12 cm. Mirror = 12cm
Answers
Answered by
1
Answer:
a flens=12,fmirror =3
Answered by
0
Answer:
the focal length of lens is dependent on the external medium while that of mirror is independent.
f=R×1.33/(1.5-1.33)×2=12cm is focallength of lens
f=3cm is focal length of mirror.
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