asked by rupesh884, 14 days ago

# 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​

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### 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.