Circular Motion questions with solutions

Showing 1–10 of 576 questions

• MCQmediumCircular Motion

  Under the same load, wire A having length 5.0 m and cross-section 2.5 × 10⁻⁵ m² stretches by the same amount as another wire B of length 6.0 m and cross-section 3.0 × 10⁻⁵ m². The ratio of Young's modulus of wire A to that of wire B is:

  Options

  • Option A

    1 : 4

  • Option B

    1 : 1

  • Option C

    1 : 10

  • Option D

    1 : 2

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  JEE Mains31 January 2023Shift 2Evening Shift

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• IntegermediumCircular Motion

  The moment of inertia of a disc of mass M and radius R about any diameter is MR²/4. Its moment of inertia about an axis normal to the disc and passing through a point on its edge is (x/2)MR². Find x.

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  JEE MainsJEE Advanced

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• NumericeasyCircular Motionrelative angular velocity and radius of curvature

  A projectile has horizontal velocity component 20 m/s. At a certain instant its vertical velocity component is zero. Take g = 10 m/s². If its radius of curvature at that instant is N m, find N.

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  JEE MainsNEETJEE Advanced

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• NumericmediumCircular Motionrelative angular velocity and radius of curvature

  A projectile is projected at 60° above the horizontal. If $R_L$ is the radius of curvature at launch and $R_T$ is the radius of curvature at the highest point, and $R_L/R_T$ = N, find N.

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• MCQmediumCircular Motion

  The charge flowing in a conductor changes with time as Q(t) = αt - βt² + γt³, where α, β and γ are constants. Minimum value of current is:

  Options

  • Option A

    α - 3β²/γ

  • Option B

    α - γ²/(3β)

  • Option C

    β - α²/(3γ)

  • Option D

    α - β²/(3γ)

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  JEE Mains30 January 2023Shift 1Morning Shift

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• MCQeasyCircular Motioncentripital force and centrifugal force

  If the radius of curvature of the path of two particles of same mass are in the ratio 3:4, then in order to have constant centripetal force, their velocities will be in the ratio of:

  Options

  • Option A

    √3 : 2

  • Option B

    1 : √3

  • Option C

    √3 : 1

  • Option D

    2 : √3

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  JEE Mains 2024 29 Jan Morning Shift

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• IntegermediumCircular Motion

  A magnetic field normal to a square metallic plate of area 4 m² varies linearly as shown. During t = 2 s to 4 s, the field changes from 4 × 10⁻³ T to 8 × 10⁻³ T. The induced emf is ______ mV. Image

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  JEE Mains11 April 2023Shift 1Morning Shift

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• MCQeasyCircular Motion

  Considering a group of positive charges, which of the following statements is correct?

  Options

  • Option A

    Net potential of the system cannot be zero at a point but net electric field can be zero at that point

  • Option B

    Net potential of the system at a point can be zero but net electric field cannot be zero at that point

  • Option C

    Both the net potential and the net field can be zero at a point

  • Option D

    Both the net potential and the net electric field cannot be zero at a point

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  JEE Mains31 January 2023Shift 2Evening Shift

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• MatchmediumCircular Motion

  Match List I with List II.

  List 1

  1. Intrinsic Semiconductor

  2. n-type semiconductor

  3. p-type semiconductor

  4. Metals

  List 2

  1. I. Fermi-level near conduction band

  2. II. Fermi-level at middle

  3. III. Fermi-level near valence band

  4. IV. Fermi-level inside conduction band

  Options

  • Option A

    A-I, B-II, C-III, D-IV

  • Option B

    A-II, B-I, C-III, D-IV

  • Option C

    A-II, B-III, C-I, D-IV

  • Option D

    A-III, B-I, C-II, D-IV

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  JEE Mains1 February 2023Shift 1Morning Shift

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• MCQeasyCircular Motion

  The acceleration due to gravity at height h above the Earth, for h ≪ R (where R is the radius of Earth), is given by:

  Options

  • Option A

    g′ = g(1 - h²/2R²)

  • Option B

    g′ = g(1 - h/2R)

  • Option C

    g′ = g(1 - 2h²/R²)

  • Option D

    g′ = g(1 - 2h/R)

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  JEE Mains8 April 2023Shift 2Evening Shift

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