| ⇦ | 
| ⇨ |
A particle covers half of its total distance with speed v1 and the rest half distance with speed v2. Its average speed during the complete journey is
Options
(a) (v1v2)/(v1+v2)
(b) (2v1v2)/(v1+v2)
(c) (2v1²v2²)/(v1²+v2²)
(d) (v1+v2)/2
Correct Answer:
(2v1v2)/(v1+v2)
Explanation:
Let the tot. distance covered by the particles be 2s. Then
vₐᵥ = 2 s / (s/ v₁ + s/ v₂) = 2 v₁v₂ / v₁ + v₂
Related Questions: - The maximum number of possible interference maxima for slit-seperation equal to
- Two coils have the mutual inductance of 0.05 H.
- Two springs with spring constants K₁=1500 N/m and K₂=3000 N/m
- Bohr’s postulates quantizes
- Huygen’s principle of secondary wavelets may be used to
Topics: Motion in Straight Line
(93)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The maximum number of possible interference maxima for slit-seperation equal to
- Two coils have the mutual inductance of 0.05 H.
- Two springs with spring constants K₁=1500 N/m and K₂=3000 N/m
- Bohr’s postulates quantizes
- Huygen’s principle of secondary wavelets may be used to
Topics: Motion in Straight Line (93)
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