- 1(current)
Q. No.An ideal gas has an isothermal bulk modulus of \(B_1.\) Its volume is doubled, isothermally. The bulk modulus is now:
| 1. | \(B_1\) | 2. | \(2B_1\) |
| 3. | \( \dfrac {B_1}{2}\) | 4. | \(\dfrac {B_1}{\sqrt 2}\) |
Subtopic: Shear and bulk modulus |
Level 3: 35%-60%
Hints
Two plates \(A,B\) are bolted together by means of a bolt \(PQ\) so that they move together. External forces \(F_1,F_2\) act along the planes of the plates. The material of the bolt \(PQ\) should have:
| 1. | small Young's modulus |
| 2. | large Young's modulus |
| 3. | small shear modulus |
| 4. | large shear modulus |
Subtopic: Shear and bulk modulus |
Level 3: 35%-60%
Hints
A solid metallic sphere is subjected to an external pressure of \(p.\) The bulk modulus of the material of the sphere is \(B.\) The change in the magnitude of the middle cross-sectional area of the sphere \((\Delta A)\) equals: (initial area = \(A\))
| 1. | \(\dfrac{pA}{B}\) | 2. | \(\dfrac{pA}{3B}\) |
| 3. | \(\dfrac{2pA}{3B}\) | 4. | \(\dfrac{pA}{2B}\) |
Subtopic: Shear and bulk modulus |
51%
Level 3: 35%-60%
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