Find the stress developed inside a tooth cavity filled with copper when hot tea at temperature of 57°C is drunk. (Take temperature of tooth to be 37°C, α = 1.7 × 10⁻⁵°C and bulk modulus for copper = 140 × 10⁹ Nm⁻²)
A
1.43 × 10⁸ N m⁻²
B
4.13 × 10⁸ N m⁻²
C
2.12 × 10⁴ N m⁻²
D
3.12 × 10⁴ N m⁻²

Question

Find the stress developed inside a tooth cavity filled with copper when hot tea at temperature of 57°C is drunk. (Take temperature of tooth to be 37°C, α = 1.7 × 10⁻⁵°C and bulk modulus for copper = 140 × 10⁹ Nm⁻²)

A

1.43 × 10⁸ N m⁻²

B

4.13 × 10⁸ N m⁻²

C

2.12 × 10⁴ N m⁻²

D

3.12 × 10⁴ N m⁻²

Accepted Answer

1.43 × 10⁸ N m⁻²

Answer

4.13 × 10⁸ N m⁻²

Answer

2.12 × 10⁴ N m⁻²

Answer

3.12 × 10⁴ N m⁻²

STANDARD Physics Thermal Stress and Strain MCQ Question

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