Doubts
Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents
Sign in to save progress →
Doubts
Sign in

Rotational Motion question

2019 · 12 Jan · Shift 1 · Q60
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Physics
  4. /Rotational Motion
  5. /2019 · 12 Jan · Shift 1 · Q60

Rotational Motion question

2019 · 12 Jan · Shift 1 · Q60

JEE MainPhysicsRotational MotionMCQ+4 / −1
Let the moment of inertia of a hollow cylinder of length 30 cm (inner radius 10 cm and outer radius 20 cm), about its axis be I. The radius of a thin cylinder of the same mass such that its moment of inertia about its axis is also I, is :
  1. A
    16 cm
  2. B
    12 cm
  3. C
    14 cm
  4. D
    18 cm
PreviousNext

More from Rotational Motion

  • Two particles A, B are moving on two concentric circles of radii R1 and R2 with equal angular speed ω. At t = 0, their positions and direction of motion are shown in the figure. : The relative velocity VA​−VB​… Includes diagram2019 · MCQ
  • The moment of inertia of a solid sphere, about an axis parallel to its diameter and at a distance of x from it, is 'I(x)'. Which one of the graphs represents the variation of I(x) with x correctly ?2019 · MCQ
  • A particle of mass 20 g is released with an initial velocity 5 m/s along the curve from the point A, as shown in the figure. The point A is at height h from point B. The particle slides along the frictionless surface. when the particle… Includes diagram2019 · MCQ
  • A force of 40N acts on a point B at the end of an L-shaped object, as shown in the figure. The angle θ that will produce maximum moment of the force about point A is given by : Includes diagram2018 · MCQ
  • A uniform rod AB is suspended from a point X, at a variable distance x from A, as shown, To make the rod horizontal, a mass m is suspended from its end A. A setof(m,x)$$ values is recorded. The appropriate variables that… Includes diagram2018 · MCQ
  • A thin rod MN, free to rotate in the vertical plane aboutthe fixed end N, is held horizontal. When the end M is released the speed of this end, when the rod makes an angle α with the horizontal, will be proportional to : (see figure) Includes diagram2018 · MCQ
  • A thin uniform bar of length L and mass 8 m lies on a smooth horizontal table. Two point masses m and 2 m are moving in the same horizontal plane from opposite sides of the bar with speeds 2 υ and υ respectively. The… Includes diagram2018 · MCQ
  • A thin circular disk is in the xy plane as shown in the figure. The ratio of its moment of inertia about z and z' axes will be : Includes diagram2018 · MCQ