Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Ray Optics

Question:

Options:

a

b

c

d

Correct Answer:

c

Explanation:

$ \text{Radius of the disc is } R = \frac{h}{\sqrt{\mu^2 -1}} = \frac{4}{\sqrt{(\frac{5}{3})^2 -1}} = 3m$

$\text{Diameter of the disc is } 6m.$