Question

Please answer this question in the top left of the picture and help me how to do it! the other stuff is to guide you through it. The answer is below

Answer 1

(a)
We should use, Converging Mirror,
Reason -
Converging / Concave mirror forms real image while Diverging/Convex mirror forms Virtual image.
Only Real images can be viewed on a sheet of paper.

(b)
Yes we can see the image,

R = 300 mm
f = R/2 = 150 mm
Distance of object, do = 360 mm
Let distance of image, = di

Using thin lens equation,
1/f = 1/di + 1/do
1/150 = 1/di + 1/360
di = 257 mm
The image will be formed at distance = 257 mm from the lens.

Magnification, M = -di/do
M = -257/360
M = - 0.714

The image formed is 71.4 % of the original object.