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# An object 1cm high placed on the axis 15cm from a converging lens forms an image...

### Question

An object 1cm high placed on the axis 15cm from a converging lens forms an image 30cm from the lens. The size of the image is

A) 0.5cm

B) 1.5cm

C) 3cm

D) 2.5m

E) 2cm

### Explanation:

$$\frac{\text{image distance}}{\text{object distance}}$$ = $$\frac{\text{image height}}{\text{object height}}$$
$$\frac{30}{15}$$ = $$\frac{\text{image height}}{1}$$
Image height = 2cm

## Dicussion (1)

• $$\frac{\text{image distance}}{\text{object distance}}$$ = $$\frac{\text{image height}}{\text{object height}}$$
$$\frac{30}{15}$$ = $$\frac{\text{image height}}{1}$$
Image height = 2cm