What is the SI unit of stress?

Correct option is B

The SI unit of stress is the Pascal (Pa). Stress is defined as force per unit area applied to an object. It is a fundamental concept in physics and engineering to describe material deformation under load.

Key points:
● Stress is calculated as $\text{Stress}=$(Force)/(Area)
● Pascal (Pa) is equivalent to one Newton per square meter (1Pa=1N/m21 \, \text{Pa} = 1 \, \text{N/m}^21Pa=1N/m²).
● Stress is categorized into tensile, compressive, and shear stress based on the type of force.
● The study of stress is crucial for material strength and structural design.
● High stress can cause material failure, leading to fractures or deformation.
● Stress analysis helps ensure safety in engineering applications.

Additional Information:

• Joule is the unit of energy.
• Volt is the unit of electric potential.
• Watt is the unit of power.