Question

An object is placed at a distance of 10 cm infront of a concave lens of focal length 10 cm

i) The image formed is _____
ii) The image formed at _____​

Answer 1

F = -10
V = -10
U = ?
h=?
By formula

1/f= 1/v+ 1/u

1 / -10 = 1/-10+ 1/u
1/u = 1/-10+1/10

1/u = -5

U= 5