Question

pls answer the question
I will mark the brainliest ​

Answer 1

Answer:

the answer is 6cm .

plz mark as brainliest

Answer 2

Answer:

position = 20 cm ; size of image = 4 cm ; nature of image is real and inverted

Explanation:

size of object,h = 2 cm

focal length , f = 10 cm

distance between object and lens ,u = -15 cm

image formed far away with lens , v = ?

size of image form , h' = ?

1/f = 1/v - 1/u

1/v = 1/f + 1/u = 1/10 - 1/15 = (15 - 10)/150 = 5/150

1/v = 5/150

v = +30 cm

positive sign show that image is formed on other side of lens and the image is real and inverted

magnificant of lense , m = h'/h = v/u

h' = h*v/u

h' = 2*30/-15 =-4 cm