Question

mirror? D. As per the sign convention used for mirrors, it appears to have both positive and negative values for different measurements. For example, for real objects placed in front of the mirror, object distance (u) is considered to be negative. 1. What would be the sign for objects behind the mirror? 2. State the sign convention for both real and virtual images. 3. Is there any difference in the sign convention for focal length in different mirrors? 4. Make a chart for the detailed sign convention for mirrors. 5. What factors determine the allotment of signs for different measurement

Answer 1

Answer:

u is negative wgen object is placed in front of mirror either in concave or convex mirror. Focal lenght is positive in convex mirror and negative in concave mirror. sign covenction for real and virtual image depend on position where the object is placed. When we measure u or v from tge pole, if it is in the direction of incident ray we consider it as positive otherwise, we consider it as negative