Question

बहराइच की सावधानी ब्राइटनेस कम सुंदर सॉन्ग द्वारा करते हैं​

Answer 1

Explanation:

μ = Refractive index. v = Image distance u = Object distance. R = Radius of curvature. This equation is for the case when object is placed in rarer medium and image is formed in the denser medium and it is a real image and curved surface is convex.