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Physics
Physics
Problem
Which one of the following expressions gives the magnifying power
M
M
M
of a refracting telescope when the final image is at infinity? a)
M
=
1
+
f
o
f
e
M=1+\dfrac{f_o}{f_e}
M
=
1
+
f
e
f
o
b)
M
=
f
o
f
e
M=\dfrac{f_o}{f_e}
M
=
f
e
f
o
c)
M
=
−
f
o
f
e
M=-\dfrac{f_o}{f_e}
M
=
−
f
e
f
o
d)
M
=
−
f
e
f
o
M=-\dfrac{f_e}{f_o}
M
=
−
f
o
f
e
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