Question

4. If he wishes to take a picture of the same tree from further away (and still fill the image sensor), he would need to ____________ the distance between the lens and the sensor array.

(a) increase (b) decrease (c) not change

Explain your answer using sentences

Answer 1

Answer :  If he wishes to take a picture of the same tree from further away (and still fill the image sensor), he would need to increase the distance between the lens and the sensor array.

Becasue, Here we need that the image should still fill the image sensor - Thus the magnification will be constant.

Now, Image distance = magnification x Object distance.

Therefore, If we increases the object distance (When we take a picture of the same tree from further away), then the image distance (the distance between the lens and the sensor array.) should be also increased.