MCQOPTIONS
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MCQOPTIONS
This section includes 2 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Physics Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Two wires have the same material and have the same volume. However wire 1 had cross sectional area A and wire 2 has cross sectional area 3A. If the length of wire 1 increases by ∆x on applying force F, how much force is needed to stretch wire 2 by the same amount? |
| A. | F |
| B. | 4F |
| C. | 6F |
| D. | 9F |
| Answer» E. | |
| 2. |
If the stress is S and the Young’s modulus is Y of material of a wire, the energy stored in the wire per unit volume is? |
| A. | 2Y/S |
| B. | S/2Y |
| C. | 2S2 Y |
| D. | S2/ 2Y |
| Answer» E. | |