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A heave uniform rod is hanging vertically form a fixed support
Concepts of Physics by H. C. Verma
Concepts of Physics

Class 11

HC Verma Part I

Author:
H. C. Verma
Subject:
Physics
1

Chapter 1: Introduction to Physics

35 questions

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2

Chapter 2: Physics and Mathematics

60 questions

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3

Chapter 3: Rest and Motion: Kinematics

88 questions

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4

Chapter 4: The Forces

33 questions

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5

Chapter 5: Newton's Law of Motion

82 questions

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6

Chapter 6: Friction

57 questions

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7

Chapter 7: Circular Motion

63 questions

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8

Chapter 8: Work and Energy

101 questions

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9

Chapter 9: Centre of Mass, Linear momentum Collision

119 questions

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10

Chapter 10: Rotational Mechanics

149 questions

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11

Chapter 11: Gravitation

80 questions

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12

Chapter 12: Simple Harmonic Motion

111 questions

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13

Chapter 13: Fluid Mechanics

81 questions

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14

Chapter 14: Some Mechanical Properties of Matter

87 questions

Q1
A wire elongates by 1.0 mm when a load W is hung from it. If this wire goes over a a pulley and two weights W each are hung at the two ends, he elongation of he wire will be 
Q2
A heave uniform rod is hanging vertically form a fixed support. It is stretched by its won weight. The diameter of the rod is
Q3
When a metal wire is stretched by a load, the fractional change in its volume ∆V/V is proportional to
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15

Chapter 15: Wave Motion and Waves on a String

96 questions

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16

Chapter 16: Sound Waves

118 questions

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17

Chapter 17: Light Waves

79 questions

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18

Chapter 18: Geometrical optics

123 questions

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19

Chapter 19: Optical Instruments

52 questions

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20

Chapter 20: Dispersion and Spectra

27 questions

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21

Chapter 21: Speed of Light

14 questions

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22

Chapter 22: Photometry

38 questions

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Question
Easy
Timing Icon

Solving time: 2 mins

A heave uniform rod is hanging vertically form a fixed support. It is stretched by its won weight. The diameter of the rod is

A
Smallest at the top and gradually increases down the rod

B
Largest at the top and gradually decreases down the rod

C
Uniform everywhere

D
Maximum in the middle

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Views: 5,867 students

Updated on: Dec 28, 2022

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Book:

Concepts of Physics (HC Verma Part I)

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Text SolutionText solutionverified iconVerified

As the rod is of uniform mass distribution and stretched by its own weight, the topmost part of the rod experiences maximum stress due to the weight of the entire rod. This stress leads to lateral strain and the rod becomes thinner. Moving down along the length of the rod, the stress decreases because the lower parts bear lesser weight of the rod. With reduced stress, the lateral strain also reduces. Hence, the diameter of the rod gradually increases from top to bottom. 
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Practice questions from Concepts of Physics (HC Verma Part I)

Question 1
Easy
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Views: 5,600

When the skeleton of an elephant and the skeleton of a mouse are prepared in the same size, the bones of the elephant are shown thicker than those of the mouse. Explain why the bones of an elephant are thicker than proportionate. The bones are expected to withstand the stress due to the weight of the animal.
Topic

Topic:

Mechanical Properties of Solids

Book

Book:

Concepts of Physics (HC Verma Part I)

View 2 solutions

Question 2
Easy
Views

Views: 5,883

Two wires A and B are made of same material. The wire A has a length l and diameter r while the wire B has a length 2l and diameter r/2. If the two wires are stretched by the same force, the elongation in A divided by the elongation in B is 
  1. 1/8
  2. 1/4
  3. 4
  4. 8
Topic

Topic:

Mechanical Properties of Solids

Book

Book:

Concepts of Physics (HC Verma Part I)

View 10 solutions

Question 3
Easy
Views

Views: 6,238

The rise of a liquid in a capillary tube depends on:
  1. The material
  2. The length
  3. The outer radius
  4. The inner radius of the tube
Topic

Topic:

Mechanical Properties of Solids

Book

Book:

Concepts of Physics (HC Verma Part I)

View solution

Question 4
Medium
Views

Views: 5,996

A long straight piece of thread is kept on the surface of water. Find the force with which the surface on one side of the thread pulls it. Surface tension of water .
Topic

Topic:

Mechanical Properties of Solids

Book

Book:

Concepts of Physics (HC Verma Part I)

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For a given material, the Young's modulus is times that of modulus of rigidity. Its Poisson's ratio is
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Question 2
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The bulk modulus of an ideal gas at constant temperature
  1. Is equal to its volume
  2. Is equal to
  3. Is equal to its pressure
  4. Can not be determined
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Question 3
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A rectangular film of liquid is extended from to . If the work done is . The surface tension of liquid is
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Question 4
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Which one of the following statements is correct? In the case of
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  2. Tensile stress there is no change in volume
  3. Shearing stress there is no change in shape
  4. Hydraulic stress there is no change in volume
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Topic:

Mechanical Properties of Solids

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Question Text
A heave uniform rod is hanging vertically form a fixed support. It is stretched by its won weight. The diameter of the rod is
Updated OnDec 28, 2022
TopicMechanical Properties of Solids
SubjectPhysics
ClassClass 11
Answer TypeText solution:1 Video solution: 1
Upvotes131
Avg. Video Duration3 min