Estimate how many gallons of water are used in this country each year for flushing toilets.
2 answers:
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Answer:
u = - 20 cm
m =
Given:
Radius of curvature, R = 10 cm
image distance, v = 4 cm
Solution:
Focal length of the convex mirror, f:
f =
Using Lens' maker formula:
Substitute the given values in the above formula:
u = - 20 cm
where
u = object distance
Now, magnification is the ratio of image distance to the object distance:
magnification, m =
magnification, m =
m =
m =
Answer:
Explanation:
As we know that the mass of the magnesium is given as
mass = 1300 g
volume of the magnesium is
volume = 743 cubic cm
so we will have
so we will have