# When an object 5 cm height is placed at a distance 60 cm in front of a concave mirror of focal length 10 cm find the position and size of the image please send the correct step by step explanation

## Answers

__Given__ :

In concave mirror,

Object distance = 5cm

Object distance = - 60cm

Focal lenght = - 10cm

__To find__ :

The position and size of the image.

__Solution__ :

In concave mirror focal length and image distance is negative.

» A formula which gives the relationship between image distance, object distance and focal length of a sperical mirror is known as the mirror formula .i.e.,

where,

- v denotes Image distance
- u denotes object distance
- f denotes focal length

now, substituting all the given values,

**Thus, the position of image is -12cm.**

» The Magnification produced by a mirror is equal to the ratio of the image distance to the object distance with a minus sign and is also equal to the ratio of height of the image to the height of the object .i.e.,

where,

- v denotes image distance
- u denotes object distance
- h' denotes image height
- h denotes object height

Now, substituting all the given values in the formula,

**thus,**** ****the**** ****size**** of**** the**** image**** is**** ****-1cm.**

**Answer:**

The size of the image is -1 cm