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The adjacent graph shows the extension ( $l$ ) of a wire of length 1m suspended from the top of a roof at one end and with a load W connected to the other end. If the cross-sectional area of the wire is $10 to the power of negative 6 blank end exponent m to the power of 2 blank end exponent$ , calculate the Young’s modulus of the material of the wire.

$2 \times 10^{11} {N m}^{- 2}$
$2 \times 10^{- 11} {N m}^{- 2}$
$3 \times 10^{12} {N m}^{- 2}$
$2 \times 10^{13} {N m}^{- 2}$

The correct answer is: $2 cross times 10 to the power of 11 blank end exponent N m to the power of negative 2 end exponent$

Extensions $increment l equals open parentheses fraction numerator L over denominator Y A end fraction close parentheses bullet W$
$i e comma$ graph is a straight line passing through origin (as shown in question also), the slope of which is $fraction numerator L over denominator Y A end fraction$
Slope $equals open parentheses fraction numerator L over denominator Y A end fraction close parentheses$
Y = $open parentheses fraction numerator L over denominator A end fraction close parentheses open parentheses fraction numerator 1 over denominator s l o p e end fraction close parentheses$
$equals open parentheses fraction numerator 1.0 over denominator 10 to the power of negative 6 end exponent end fraction close parentheses fraction numerator open parentheses 80 minus 20 close parentheses over denominator open parentheses 4 minus 1 close parentheses cross times 10 to the power of negative 4 end exponent end fraction$
$equals 2.0 cross times 10 to the power of 11 end exponent N m to the power of negative 2 end exponent$

Which is not correctly matched :

biologyGeneral

General

biology

In a plant three dominant independetly assorting gene A. B and C are essential for production of purple pigment. If any of the genes or all three genes are present in recessive condition then flower is colourless Raw material $not stretchy ⟶ with straight A on top straight X not stretchy ⟶ with straight B on top straight Y not stretchy ⟶ with straight C on top straight Z$ pigment A purple plant with genotype AABBCC crossed with a colourless plant with genotype aabbcc gives purple F1 hybrid. On selfing of F₁ - what proportion of coloured offspring in F₂

biologyGeneral

General

biology

Which of the following show linkage group in coupling phase

biologyGeneral

General

biology

The linkage map of X-chromosome of fruitfully has 66 units, with yellow body gene (y) at one end and bodded hair (b) gene at the other end. The recombination frequency between these two genes (y and b) should be -

biologyGeneral

General

chemistry-

Which of the following polymer can be formed by using the following monomer unit?

chemistry-General

General

chemistry-

is a polymer having monomer units

chemistry-General

General

Maths-

Consider function f(x) satisfies the relation, $f open parentheses x plus y to the power of 3 end exponent close parentheses equals f left parenthesis x right parenthesis plus f open parentheses y to the power of 3 end exponent close parentheses comma for all x comma y element of R$ and differentiable for all x.
$text Statement end text 1 colon text If end text f to the power of ´ end exponent left parenthesis 2 right parenthesis equals a text then end text f to the power of ´ end exponent left parenthesis negative 2 right parenthesis equals a$
$text Statement end text 2 colon f left parenthesis x right parenthesis text is an odd function. end text$

In this question, we have given two statements are like assertion and reason. The odd function is, a function such that f (−x) =−f (x) where the sign is reversed but the absolute value remains the same if the sign of the independent variable is reversed.

Consider function f(x) satisfies the relation, $f open parentheses x plus y to the power of 3 end exponent close parentheses equals f left parenthesis x right parenthesis plus f open parentheses y to the power of 3 end exponent close parentheses comma for all x comma y element of R$ and differentiable for all x.
$text Statement end text 1 colon text If end text f to the power of ´ end exponent left parenthesis 2 right parenthesis equals a text then end text f to the power of ´ end exponent left parenthesis negative 2 right parenthesis equals a$
$text Statement end text 2 colon f left parenthesis x right parenthesis text is an odd function. end text$

Maths-General

General

chemistry-

Electronic configuration has violated:

chemistry-General

General

chemistry-

The figure indicates the energy level diagram for the origin of six spectral lines in emission spectrum (e.g. line no. 5 arises from the transition from level B to X ) which of the following spectral lines will not occur in the absorption spectrum :

chemistry-General

General

chemistry-

The conductivity of 0.001 M acetic acid is 5 × 10^–5 S cm^–1 and $logical and to the power of 0$ is 390.5 S cm² mol^–1 then the calculated value of dissociation constant of acetic acid would be

chemistry-General

General

chemistry-

Titration curves for 0.1M solution of three weak acids HA₁ , HA₂ and HA₃ with ionization constants K₁ , K₂ and K₃ respectively are plotted as shown in the figure. Which of the following is /are true?

chemistry-General

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The adjacent graph shows the extension () of a wire of length 1m suspended from the top of a roof at one end and with a load W connected to the other end. If the cross-sectional area of the wire is , calculate the Young’s modulus of the material of the wire.

The correct answer is:

Extensions graph is a straight line passing through origin (as shown in question also), the slope of which isSlopeY =

Related Questions to study

Which is not correctly matched :

Which is not correctly matched :

Which of the following show linkage group in coupling phase

Which of the following show linkage group in coupling phase

The linkage map of X-chromosome of fruitfully has 66 units, with yellow body gene (y) at one end and bodded hair (b) gene at the other end. The recombination frequency between these two genes (y and b) should be -

The linkage map of X-chromosome of fruitfully has 66 units, with yellow body gene (y) at one end and bodded hair (b) gene at the other end. The recombination frequency between these two genes (y and b) should be -

Match the following

Match the following

Match the following

Match the following

Study the pedigree chart given below What does it show

Study the pedigree chart given below What does it show

Which of the following polymer can be formed by using the following monomer unit?

Which of the following polymer can be formed by using the following monomer unit?

is a polymer having monomer units

is a polymer having monomer units

Consider function f(x) satisfies the relation, and differentiable for all x.

Consider function f(x) satisfies the relation, and differentiable for all x.

Electronic configuration has violated:

Electronic configuration has violated:

The figure indicates the energy level diagram for the origin of six spectral lines in emission spectrum (e.g. line no. 5 arises from the transition from level B to X ) which of the following spectral lines will not occur in the absorption spectrum :

The figure indicates the energy level diagram for the origin of six spectral lines in emission spectrum (e.g. line no. 5 arises from the transition from level B to X ) which of the following spectral lines will not occur in the absorption spectrum :

The conductivity of 0.001 M acetic acid is 5 × 10–5 S cm–1 and is 390.5 S cm2 mol–1 then the calculated value of dissociation constant of acetic acid would be

The conductivity of 0.001 M acetic acid is 5 × 10–5 S cm–1 and is 390.5 S cm2 mol–1 then the calculated value of dissociation constant of acetic acid would be

Titration curves for 0.1M solution of three weak acids HA1 , HA2 and HA3 with ionization constants K1 , K2 and K3 respectively are plotted as shown in the figure. Which of the following is /are true?

Titration curves for 0.1M solution of three weak acids HA1 , HA2 and HA3 with ionization constants K1 , K2 and K3 respectively are plotted as shown in the figure. Which of the following is /are true?

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The correct answer is: $2 cross times 10 to the power of 11 blank end exponent N m to the power of negative 2 end exponent$

The conductivity of 0.001 M acetic acid is 5 × 10^–5 S cm^–1 and $logical and to the power of 0$ is 390.5 S cm² mol^–1 then the calculated value of dissociation constant of acetic acid would be

The conductivity of 0.001 M acetic acid is 5 × 10^–5 S cm^–1 and $logical and to the power of 0$ is 390.5 S cm² mol^–1 then the calculated value of dissociation constant of acetic acid would be

Titration curves for 0.1M solution of three weak acids HA₁ , HA₂ and HA₃ with ionization constants K₁ , K₂ and K₃ respectively are plotted as shown in the figure. Which of the following is /are true?

Titration curves for 0.1M solution of three weak acids HA₁ , HA₂ and HA₃ with ionization constants K₁ , K₂ and K₃ respectively are plotted as shown in the figure. Which of the following is /are true?