Question

Radius of curvature of a convex mirror used as a rear view mirror in a car is to earthquake is Coming from behind it at a distance of 3.5 calculate the position size of the image relative to the size of the truck what will be the nature of the image​

Answer 1

Answer:

f = r÷2 = 2m ÷ 2 = 1 m

u = -3.5 m

Using mirror formula,

1 ÷ -3.5 m + 1 ÷ v = 1 ÷ 1 m

1 ÷ v = 1 m + 1 ÷ 3.5 m

1 ÷ v = (3.5 + 1) m ÷ 3.5

1 ÷ v = 4.5 m ÷ 3.5

1 ÷ v = 9 ÷ 7 m

v = 7 ÷ 9 m

v = 0.78 m

Answer 2

:f = r÷2 = 2m ÷ 2 = 1 m

u = -3.5 m

Using mirror formula,

1 ÷ -3.5 m + 1 ÷ v = 1 ÷ 1 m

1 ÷ v = 1 m + 1 ÷ 3.5 m

1 ÷ v = (3.5 + 1) m ÷ 3.5

1 ÷ v = 4.5 m ÷ 3.5

1 ÷ v = 9 ÷ 7 m

v = 7 ÷ 9 m

v = 0.78 m