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If rope of lift breaks suddenly, the tension exerted by the surface of the lift (a = Acceleration of lift) is
Options
(a) mg
(b) m(g+a)
(c) zero
(d) m(g-a)
Correct Answer:
zero
Explanation:
If the rope suddenly breaks, acceleration = g
So substituting in formula, tension T=m(g−a)=0
Related Questions: - A particle of mass 100g tied to a string is rotated along a circle of radius 0.5 m
- If the wavelength of light in vacuum be, the wavelength in a medium of refractive index
- A block of mass M is attached to the lower end of a vertical spring
- In refraction, light waves are bent on passing from one medium to the second medium
- The momentum of a photon of energy 1 MeV in kg m/s will be
Topics: Laws of Motion
(103)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A particle of mass 100g tied to a string is rotated along a circle of radius 0.5 m
- If the wavelength of light in vacuum be, the wavelength in a medium of refractive index
- A block of mass M is attached to the lower end of a vertical spring
- In refraction, light waves are bent on passing from one medium to the second medium
- The momentum of a photon of energy 1 MeV in kg m/s will be
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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