| ⇦ | 
| ⇨ |
Six molecules have speeds 2 units, 5 units, 3 units, 6 units, 3 units and 5 units respectively. The rms speed is
Options
(a) 4 units
(b) 1.7 units
(c) 4.2 units
(d) 5 units
Correct Answer:
4 units
Explanation:
v(rms) = √[(v₁² + v₂²+ ……. + v(n)²) / n] = √[(4+25+9+36+9+25) / 6]
= √(108 /6) = √(18) = 3 √2 = 3 × 1.414 = 4.242 units
i.e. 4 units is the approximately correct answer
Related Questions: - The apparent weight of the body of mass 10 kg when it is travelling upwards with
- A cell can be balanced against 110 cm and 100 cm of potentiometer wire, respectively
- In Bohr model of hydrogen atom, the force on the electron depends on the principal
- Heat is flowing through a rod of length 50 cm and area of cross-section 5 cm².
- A roller coaster is designed such that riders experience “weightlessness” as they
Topics: Behavior of Perfect Gas and Kinetic Theory
(34)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The apparent weight of the body of mass 10 kg when it is travelling upwards with
- A cell can be balanced against 110 cm and 100 cm of potentiometer wire, respectively
- In Bohr model of hydrogen atom, the force on the electron depends on the principal
- Heat is flowing through a rod of length 50 cm and area of cross-section 5 cm².
- A roller coaster is designed such that riders experience “weightlessness” as they
Topics: Behavior of Perfect Gas and Kinetic Theory (34)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply