Question

You are taking a picture of a giraffe that is standing far away from you. The image is just too small, so you swap the 60-mm-focal-length lens in your camera for a 960 mm telephoto lens. By what factor does this increase the size of the image?

Answer 1

Step-by-step explanation:

Given that, you are taking a picture of a giraffe that is standing far away from you. The image is just too small, so you swap the 60-mm-focal-length lens in your camera for a 960 mm telephoto lens such that,

`m_1=960\ mm`

`m_2=60\ mm`

We need to find the the factor with which the size of the image increases. It can be calculated by taking ratios of both
`m_1\ and\ m_2`

So,
`(m_1)/(m_2)=(960)/(60)`

`(m_1)/(m_2)=16`

So, the size of image increases by a factor of 16. Hence, this is the required solution.