In question 11,why we took u=-50 If we look at the question its saying that the image is formed - Science - Light - Reflection and Refraction

Question

In
question 11,why we took u=-50? If we look at the question its
saying that the image is formed at the screen 50cm from the mirror,
so v=50 must be taken

Decoder_2 · Accepted Answer

Dear Student,yes, you are right
But in the question after seeing it parts the question is asking for the distance of the image in (ii) part
So its better to take v in this case
Regards

In question 11,why we took u=-50? If we look at the question its saying that the image is formed at the screen 50cm from the mirror, so v=50 must be taken....