Answer:
To solve this problem, we need to use the concept of scale factor. The scale factor tells us how much larger or smaller an image is compared to the original image. In this case, the scale factor is 7/6, which means that the new image will be 7/6 times larger than the original image.
We can use the scale factor to find the dimensions of the new image. To do this, we simply multiply the dimensions of the original image by the scale factor.
Original dimensions: 24 cm x 12 cm
New dimensions: (24 cm x 7/6) x (12 cm x 7/6) = 28 cm x 14 cm
So, the dimensions of the photograph after it is sent through the photocopier are length 28 cm and width 14 cm.
Therefore, the correct answer is length 28 cm, width 14 cm.