MCQOPTIONS
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MCQOPTIONS
This section includes 3 Mcqs, each offering curated multiple-choice questions to sharpen your Physics Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The distance between the centres of carbon and oxygen in the carbon monoxide molecules is 1.13 x 10-10 m. The distance of the centre of mass of the molecule relative to the oxygen atom is _____ |
| A. | 0.48 x 10-10 m |
| B. | 0.64 x 10-10 m |
| C. | 0.56 x 10-10 m |
| D. | 0.36 x 10-10 m |
| Answer» B. 0.64 x 10-10 m | |
| 2. |
Particles of masses 1 kg and 3 kg are at (2i+5j+13k) m and (-6i+4j-2k) m. What is the position of their centre of mass? |
| A. | 1/4 (-16i + 17j + 7k) m |
| B. | 1/4 (-8i + 17j + 7k) m |
| C. | 1/4 (-6i + 17j + 7k) m |
| D. | 1/4 (-6i + 17j + 5k) m |
| Answer» B. 1/4 (-8i + 17j + 7k) m | |
| 3. |
Masses 1 kg, 1.5 kg, 2 kg, and “M” kg are situated at (2,1,1), (1,2,1), (2,-2,1) and (-1,4,3). What is the value of “M” if their centre of mass is at (1,1,3/2)? |
| A. | 1 kg |
| B. | 1.5 kg |
| C. | 2 kg |
| D. | 2.5 kg |
| Answer» C. 2 kg | |