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

Properties of Matter question

2022 · 29 Jul · Shift 2 · Q64
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Physics
  4. /Properties of Matter
  5. /2022 · 29 Jul · Shift 2 · Q64

Properties of Matter question

2022 · 29 Jul · Shift 2 · Q64

JEE MainPhysicsProperties of MatterNumerical+4 / −1
A metal wire of length 0.5 m0.5 \mathrm{~m}0.5 m and cross-sectional area 10−4 m210^{-4} \mathrm{~m}^{2}10−4 m2 has breaking stress 5×108 Nm−25 \times 10^{8} \,\mathrm{Nm}^{-2}5×108Nm−2. A block of 10 kg10 \mathrm{~kg}10 kg is attached at one end of the string and is rotating in a horizontal circle. The maximum linear velocity of block will be ‾\underline{\hspace{2cm}}​ms−1\mathrm{ms}^{-1}ms−1.
Numerical answer
PreviousNext

More from Properties of Matter

  • The velocity of a small ball of mass 0.3 g and density 8 g/cc when dropped in a container filled with glycerine becomes constant after some time. If the density of glycerine is 1.3 g/cc…2022 · Numerical
  • The speed of a transverse wave passing through a string of length 50 cm and mass 10 g is 60 ms−1. The area of cross-section of the wire is 2.0 mm2 and its Young's modulus is 1.2×1011Nm−2…2022 · Numerical
  • A wire of length L is hanging from a fixed support. The length changes to L1 and L2 when masses 1 kg and 2 kg are suspended respectively from its free end. Then the value of L is equal to :2022 · MCQ
  • A block of metal weighing 2 kg is resting on a frictionless plane (as shown in figure). It is struck by a jet releasing water at a rate of 1 kgs − 1 and at a speed of 10 ms − 1. Then, the initial acceleration of the block, in ms − 2,… Includes diagram2022 · MCQ
  • A small spherical ball of radius 0.1 mm and density 104 kg m − 3 falls freely under gravity through a distance h before entering a tank of water. If, after entering the water the velocity of ball does not change and it continue to fall…2022 · Numerical
  • An air bubble of negligible weight having radius r rises steadily through a solution of density σ at speed v. The coefficient of viscosity of the solution is given by :2022 · MCQ
  • The excess pressure inside a liquid drop is 500 Nm − 2. If the radius of the drop is 2 mm, the surface tension of liquid is x × 10 − 3 Nm − 1. The value of x is ​.2022 · Numerical
  • A steel rod with y = 2.0 × 1011 Nm − 2 and α = 10 − 5 ∘ C − 1 of length 4 m and area of cross-section 10 cm2 is heated from 0 ∘ C to 400 ∘ C without being allowed to extend. The tension produced in…2021 · Numerical