Question

an object is placed at 6cm distance in front of a concave mirror of focal length 4cm
1. find the position of the image​

Answer 1

Answer:

the position of the image is 12cm

Answer 2

Answer:

The position of the image is beyond c (centre of curvature)

Explanation:

given:

u (object distance) = 6cm

f (focal length) = 4cm

------------

we know for a concave mirror,

u is -ve,

v (image distance) can be +ve or -ve

f is -ve

h (object height) is +ve

h' (image height) can be +ve or  -ve

-----------

we know mirror formula,

1/v + 1/u = 1/f

⇒1/v + 1/(-6) = 1/(-4)

⇒1/v -1/6 = -1/4

⇒1/v = -1/4 + 1/6

⇒ 1/v = -3 + 2/12

⇒ 1/v = -1/12

∴ v = -12

∴The position of the image is beyond c (centre of curvature)

the image is real, inverted and enlarged when compared to the object.

hope this helps...

mark me the brainliest