Strenght of Materials

Q.

The resultant stress on an inclined plane which is inclined at an angle `theta` to the normal cross-section of a body which is subjected to a direct tensile stress (`sigma`) in one plane, is


A. `sigma sin theta`
B. `sigma cos theta`
C. `sigma sin 2theta`
D. `sigma cos 2 theta`

Answer : Option B

Explanation :