Question

Consider the following statements.
1. Quartz and phosphor or bronze are the examples of nearly perfectly elastic bodies.
2. Putty, mud and paraffin wax are the examples of perfectly plastic bodies.
Which of the statement(s) given above are correct?

• A. Only 1
• B. Only 2
• C. Both 1 and 2
• D. Neither 1 nor 2

Answer 1

The correct option is C Both 1 and 2

1. Quartz and phosphor or bronze have very high value of Young's Modulus, so these are nearly perfectly elastic bodies.

2. On the other hand, Putty, mud and paraffin wax have extremely low value for Young's Modulus, so these are nearly perfectly plastic bodies.

So both the statements are correct.