MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In superposition of waves the displacements get added like vectors. True or False? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
If the two pulses of equal amplitude have 2J of energy each, what will be the energy of the system when they overlap with each other making the string entirely straight? |
| A. | 0 |
| B. | 4J |
| C. | 2J |
| D. | 1J |
| Answer» C. 2J | |
| 3. |
A wave having an amplitude of 3cm is to be superimposed with another wave of the same amplitude. What should be their phase difference if the net amplitude has to be 0? |
| A. | π/2 |
| B. | π |
| C. | 2π |
| D. | 0 |
| Answer» C. 2π | |
| 4. |
y1 = 2sin(3x – 2t) & y2 = 3sin(3x – 2t + π/4). Find the expression for resultant displacement caused by superposition of the two waves. |
| A. | 3.6sin(2x-3t+3π/7) |
| B. | 4.63sin(3x-2t+3π/5) |
| C. | 3.6cos(3x-2t+3π/7) |
| D. | 4.63cos(3x-2t+3π/5) |
| Answer» C. 3.6cos(3x-2t+3π/7) | |