Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test General Science Physics Optics
A swimming pool always looks shorter in-depth than it actually is. This is an example of
1
Reflection
2
Refraction
3
Diffusion
4
More than one of the above
5
None of the above