The moisture in the freezer will freeze due to the cold temperature, and form a layer of ice (the water molecules expand and solidify). Each time the freezer is opened, the moisture that enters via the air will freeze and form a layer of ice on top of the previous layer, causing the ice to grow thicker over time.
As we know that
here we know that
now by the above formula we will have
Answer:
1 / i + 1 / o = 1 / f thin lens equations
i = o f / (o - f) rearranging
Lens 1: object = 30 cm f = 15.2 cm
i1 = 30 * 15.2 / (30 - 15.2) = 30.8 cm
o2 = 40.2 - 30/8 = 9.4 cm distance of image 1 from lens 2
i2 = 9.4 * 15.2 / (9.4 - 15.2) = - 24.6 cm
The final image is 24.6 cm to the left of lens 2
The first image is inverted
The second image is erect (as seen from the first image)
So the final image is inverted
M = m1 * m2 = (-30.8 / 30) * (24.6 / 9.4) = -2.69
