Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test Physics Optics Refraction and Reflection
When the convergent nature of a convex lens will be less as compared with air?
1
In water
2
In oil
3
In water and oil both
4
More than one of the above
5
None of the above