Question

Which of the following means that an
image is real?

Answer 1

Answer: number b is correct

Step-by-step explanation:

Answer 2

option B)
`+d_0}` means that the image is real based on the sign convention for image distance.

In the context of optical systems and lenses, the sign convention for image distance (d) is as follows:

• Positive (+) image distance (d) indicates a real image.

• Negative (-) image distance (d) indicates a virtual image.

So, in the given options:

A)
`-d_(i)`: Negative image distance, implying a virtual image.

B)
`+d_(0)`: The variable "l" is not defined, so it's unclear.

C)
`-d_(0)`: Negative image distance, implying a virtual image.

D)
`+d_(l)`: Positive image distance, indicating a real image.