The construction of an optical square is based on optical
AReflection
BDouble refraction
CRefraction
DDouble reflection
No.1 PSC Learning App
★
★
★
★
★
Related Questions:
The wooden pieces which are placed horizontally on principal rafters to carry common rafters are
The horizontal wooden or steel members to support the common rafters of a roof when the span is large is:
The main different between a map and a plan is:
The specific speed of a pump is defined as the speed of the pump which is working against a unit head
Load/Effort is