Physics-
General
Easy
Question
A uniform slender rod of length L, cross-sectional area A and Young’s modulus Y is acted upon by the forces shown in the figure. The elongation of the rod is
The correct answer is:
Net elongation of the rod is
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physics-
The graph shows the behaviour of a length of wire in the region for which the substance obeys Hooke’s law. 
and 
represent
The graph shows the behaviour of a length of wire in the region for which the substance obeys Hooke’s law. and represent
physics-General
physics-
If the shear modulus of a wire material is 5.9
then the potential energy of a wire of 
in diameter and 5 cm long twisted through an angle of 10’ , is
If the shear modulus of a wire material is 5.9 then the potential energy of a wire of in diameter and 5 cm long twisted through an angle of 10’ , is
physics-General
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The Young’s modulus of the material of a wire is equal to the
The Young’s modulus of the material of a wire is equal to the
physics-General
Maths-
Maths-General
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Two short bar magnets of equal dipole moment M are fastened perpendicularly at their centers, figure. The magnitude of resultant of two magnetic field at a distance 
from the center on the bisector of the right angle is
Two short bar magnets of equal dipole moment M are fastened perpendicularly at their centers, figure. The magnitude of resultant of two magnetic field at a distance from the center on the bisector of the right angle is
physics-General
physics-
Two magnets of equal mass are joined at 90
each other as shown in figure. Magnet 
has a magnetic moment 
times that of 
. The arrangement is pivoted so that it is free to rotate in horizontal plane. When in equilibrium, what angle should make with magnetic meridian?
Two magnets of equal mass are joined at 90 each other as shown in figure. Magnet has a magnetic moment times that of . The arrangement is pivoted so that it is free to rotate in horizontal plane. When in equilibrium, what angle should make with magnetic meridian?
physics-General
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The pressure applied from all directions on a cube is . How much its temperature should be raised to maintain the original volume? The volume elasticity of the cube is 
and the coefficient of volume expansion is 
The pressure applied from all directions on a cube is . How much its temperature should be raised to maintain the original volume? The volume elasticity of the cube is and the coefficient of volume expansion is
physics-General
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A wire 
has length 1 m and cross-sectional area 1 
The work required to increase the length by 2 mm is
A wire has length 1 m and cross-sectional area 1 The work required to increase the length by 2 mm is
physics-General
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The diagram shows a force-extension graph for a rubber band. Consider the following statements
I. It will be easier to compress this rubber than expand it
II. Rubber does not return to its original length after it is stretched
III. The rubber band will get heated if it is stretched and released
Which of these can be deduced from the graph
The diagram shows a force-extension graph for a rubber band. Consider the following statements
I. It will be easier to compress this rubber than expand it
II. Rubber does not return to its original length after it is stretched
III. The rubber band will get heated if it is stretched and released
Which of these can be deduced from the graph
physics-General
physics-
A wire of length Land radius 
rigidly fixed at one end. On stretching the other end of the wire with a force F, the increase in its length is 
If another wire of same material but of length 2L and radius 
is stretched with a force 2F, the increase in its length will be
A wire of length Land radius rigidly fixed at one end. On stretching the other end of the wire with a force F, the increase in its length is If another wire of same material but of length 2L and radius is stretched with a force 2F, the increase in its length will be
physics-General
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The variation of intensity of magnetization 
with respect to the magnetizing field (H) in a diamagnetic substance is described by the graph in figure.
The variation of intensity of magnetization with respect to the magnetizing field (H) in a diamagnetic substance is described by the graph in figure.
physics-General
Maths-
The number of one one onto functions that can be defined from A={a,b,c,d} into B={1,2,3,4} is
The number of one one onto functions that can be defined from A={a,b,c,d} into B={1,2,3,4} is
Maths-General
maths-
The number of ways one can arrange words with the letters of the word ’ so that ↑MADHURI↑ always vowels occupy the beginning, middle and end places is
The number of ways one can arrange words with the letters of the word ’ so that ↑MADHURI↑ always vowels occupy the beginning, middle and end places is
maths-General
Maths-
If 
defined by 
If defined by
Maths-General
physics
An ant goes from P to Q on a circular path in 20 second Radius OP=10 m . What is the average speed and average velocity of it ?
An ant goes from P to Q on a circular path in 20 second Radius OP=10 m . What is the average speed and average velocity of it ?
physicsGeneral
