The angle between two plain mirrors of an optical square is
A30°
B60°
C45°
D90°
No.1 PSC Learning App
★
★
★
★
★
Related Questions:
The stopping sight distance does not depend on:
The tread width of a stair designed for a hospital building should be equal to
A circular shaft is subjected to a twisting moment 'T' and bending moment 'M the ratio of maximum bending stress to maximum shear stress is given by
Volume of a solid sphere is
Which one of the following is represented by the area of the shear force diagram from one end up to a given location on the beam?