If object and image distance measured from the focus of a concave mirror is 25cm and 16cm then focal length of the mirror is
a) 10cm
B) 20cm
C) 25cm
D) 16cm
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Answers
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Answer:
spherical mirrors,
spherical mirrors, v
spherical mirrors, v1
spherical mirrors, v1
spherical mirrors, v1 +
spherical mirrors, v1 + u
spherical mirrors, v1 + u1
spherical mirrors, v1 + u1
spherical mirrors, v1 + u1 =
spherical mirrors, v1 + u1 = f
spherical mirrors, v1 + u1 = f1
spherical mirrors, v1 + u1 = f1
spherical mirrors, v1 + u1 = f1
spherical mirrors, v1 + u1 = f1 Thus putting values of u and f we get v=-100cm
spherical mirrors, v1 + u1 = f1 Thus putting values of u and f we get v=-100cmNow, lateral magnification =
spherical mirrors, v1 + u1 = f1 Thus putting values of u and f we get v=-100cmNow, lateral magnification = u
spherical mirrors, v1 + u1 = f1 Thus putting values of u and f we get v=-100cmNow, lateral magnification = u−v
spherical mirrors, v1 + u1 = f1 Thus putting values of u and f we get v=-100cmNow, lateral magnification = u−v
spherical mirrors, v1 + u1 = f1 Thus putting values of u and f we get v=-100cmNow, lateral magnification = u−v =−4
Explanation:
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Explanation:
ANSWER
For spherical mirrors,
v
1
+
u
1
=
f
1
Thus putting values of u and f we get v=-100cm
Now, lateral magnification =
u
−v
=−4