| ⇦ | 
| ⇨ |
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 wavelength of Kα line in copper is 1.5Å. The ionisation energy of K electron in copper is
- A Galilean telescope has an objective of focal length 100 cm and magnifying power 50
- When an input signal 1 is applied to a NOT gate, then its output is
- If a carnot engine is working with source temperature at 227⁰C and sink
- Two planets at mean distances d₁ and d₂ from the sun have their frequencies n₁ and n₂
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 wavelength of Kα line in copper is 1.5Å. The ionisation energy of K electron in copper is
- A Galilean telescope has an objective of focal length 100 cm and magnifying power 50
- When an input signal 1 is applied to a NOT gate, then its output is
- If a carnot engine is working with source temperature at 227⁰C and sink
- Two planets at mean distances d₁ and d₂ from the sun have their frequencies n₁ and n₂
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