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A car moves from X to Y with a uniform speed v(u) and returns to Y with a uniform speed v(d). The average speed for this round trip is
Options
(a) √v(u)v(d)
(b) v(d)v(u)/v(d)+v(u)
(c) v(u)+v(d)/2
(d) 2v(d)v(u)/v(d)+v(u)
Correct Answer:
2v(d)v(u)/v(d)+v(u)
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Motion in Straight Line
(93)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The equiconvex lens has focal length f. If it is cut perpendicular to the principal
- The approxiamate ratio of nuclear mass densities of ₇₉Au¹⁹⁷ and ₄₇ Ag¹⁰⁷ nuclei is
- The wavelength of Kα line in copper is 1.5Å. The ionisation energy of K electron in copper is
- A 36 Ω galvanometer is shunted by resistance of 4 Ω. The percentage of the total current
- The young’s modulus of steel is twice that of brass. Two wires of same length
Topics: Motion in Straight Line (93)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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