| ⇦ | 
| ⇨ |
One coolie takes 1 minute to raise a suitcase through a height of 2 m but the second coolie takes 30 s to raise the same suitcase to the same height. The powers of two coolies are in the ratio of
Options
(a) 1 : 2
(b) 1 : 3
(c) 2 : 1
(d) 3 : 1
Correct Answer:
1 : 2
Explanation:
power P = w / t
P₁ / P₂ = t₂ / t₁ = 30s / 1 minute = 30s / 60s = 1/2
(t₁ = 1 minute ; t₂ = 30 second given)
Related Questions: - Height of geostationary satellite is
- A thin film of soap solution (n=1.4) lies on the top of a glass plate (n=1.5).
- A boy standing at the top of a tower of 20m height drops a stone
- Light of wavelength λ is incident on slit of width d. The resulting diffraction
- In potentiometer experiment, a cell of emf 1.25V gives balancing length of 30 cm
Topics: Work Energy and Power
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Height of geostationary satellite is
- A thin film of soap solution (n=1.4) lies on the top of a glass plate (n=1.5).
- A boy standing at the top of a tower of 20m height drops a stone
- Light of wavelength λ is incident on slit of width d. The resulting diffraction
- In potentiometer experiment, a cell of emf 1.25V gives balancing length of 30 cm
Topics: Work Energy and Power (94)
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