An object is placed 2.5 cm away from a converging lens with a focal length of 1.5 cm

The correct answer is "-1.5 cm".

Explanation:

The given values are:

Object is placed,

u = 2.5 cm

Focal length,

f = 1.5 cm

On applying the lens formula, we get

⇒

or,

⇒

On substituting the given values, we get

⇒    

⇒    

⇒    

⇒

As we know,

Magnification,

On substituting the values, we get

⇒                          

⇒