Question

a concave mirror has a radius of curvature 24 cm and object 2.5 CM tall is placed 40 cm in front of the mirror. at what distance from the mirror will the image be formed.? what is height of image

Answer 1

Answer:

u = - 40cm

f = r/2

f = -12cm

1/v = 1/f + 1/-40

1/v = -1/12 + -1/40

1/v = -10+-3/120

v = -120/13

- v /u = hi/ho

120/13×1/-40 = hi/2.5

-3/13×2.5 = hi

-75/13 = hi

-5.77cm