A tungsten wire, 0.5mm in diameter, is just strechted between two fi

Related Playlists

BOOK - NARAYNACHAPTER - MECHANICAL PROPERTIES OF SOLIDSEXERCISE - LEVEL-II (H.W)
24videos
MECHANICAL PROPERTIES OF SOLIDS
BOOK - NARAYNACHAPTER - MECHANICAL PROPERTIES OF SOLIDSEXERCISE - MUTI CORRECT ANSWER TYPE
4videos
MECHANICAL PROPERTIES OF SOLIDS
BOOK - NARAYNACHAPTER - MECHANICAL PROPERTIES OF FLUIDSEXERCISE - EXERCISE - III
30videos
MECHANICAL PROPERTIES OF FLUIDS
BOOK - NARAYNACHAPTER - MOTION IN A PLANEEXERCISE - Level-II(H.W)
31videos
MOTION IN A PLANE

Knowledge Check

Question 1 - Select One
A wire of cross-sectional area $3 m m^{2}$ is first stretched between two fixed points at a temperature of $20^{\circ} C$ . Determine the tension when the temperature falls to $10^{\circ} C$ Coefficient of linear expansion $α = 10^{- 5} .^{\circ} C^{- 1} and Y = 2 \times 10^{11} N / m^{2}$
A20 N
B30 N
C60 N
D120 N
Question 1 - Select One
A steel wire 2 mm in diameter is just stretched between two fixed points at a temperature of $20^{\circ} C .$ If the temperature falls to $10^{\circ} C,$ then the tension in the wire is (The coefficient of linear expansion of steel = $11 \times 10^{- 6} /^{\circ} C$ and Y for steel $2.1 \times 10^{11} N / m^{2})$
A7.25 N
B725 N
C72.5 N
D $7.25 \times 10^{3} N$
Question 1 - Select One
A wire of cross sectional area 3 $m m^{2}$ is just stretched between two fixed points at a temperature of $20^{\circ} C$ . Then the tension in the wire when the temperature falls to $10^{\circ} C$ is,
$(α = 1.2 \times 10^{- 5} /^{\circ} C, Y = 2 \times 10^{11} N / m^{2})$
A80 N
B60 N
C72 N
D50 N
Question 1 - Select One
A steel wire 2 mm is diameter is just stretched between two fixed points at a temperature of $20^{\circ} C$ . If the temperature falls to $10^{\circ} C$ , then the tension in the wire is (Coefficient of linear expansion of steel $(α)$ is $11 \times 10^{- 6} /^{\circ} C and Y_{s} = 2.1 \times 10^{11} N / m^{2}$ )
A98.56 N
B725 N
C72.6 N
D $7.25 \times 10^{3} N$
Question 1 - Select One
A brass wire $1.8 m$ long at $27^{\circ} C$ is held taut with little tension between two rigid supports. If the wire cooled to a temperature of $- 39^{\circ} C$ , what is the tension developed in the wire, if its diameter is $2.0 m m$ ? Coefficient of linear expansion of brass $= 2.0 \times 10^{- 5} /^{\circ} C$ , Young's modulus of brass $= 0.91 \times 10^{11} P a$ .
A $2.4 \times 10^{2} N$
B $3.8 \times 10^{2} N$
C $1.8 \times 10^{2} N$
D $4.8 \times 10^{2} N$

The correct Answer is:A

$T = Y α Δ θ π r^{2}$

Related Playlists

Knowledge Check

A wire of cross-sectional area $3 m m^{2}$ is first stretched between two fixed points at a temperature of $20^{\circ} C$ . Determine the tension when the temperature falls to $10^{\circ} C$ Coefficient of linear expansion $α = 10^{- 5} .^{\circ} C^{- 1} and Y = 2 \times 10^{11} N / m^{2}$

A wire of cross sectional area 3 $m m^{2}$ is just stretched between two fixed points at a temperature of $20^{\circ} C$ . Then the tension in the wire when the temperature falls to $10^{\circ} C$ is,
$(α = 1.2 \times 10^{- 5} /^{\circ} C, Y = 2 \times 10^{11} N / m^{2})$

Similar Questions

NARAYNA-MECHANICAL PROPERTIES OF SOLIDS-LEVEL-I (H.W)

The correct Answer is:A

T = Y α Δ θ π r 2

Related Playlists

Knowledge Check

A wire of cross-sectional area 3mm2 is first stretched between two fixed points at a temperature of 20∘C. Determine the tension when the temperature falls to 10∘C Coefficient of linear expansion α=10−5.∘C−1andY=2×1011N/m2

A steel wire 2 mm in diameter is just stretched between two fixed points at a temperature of 20∘C. If the temperature falls to 10∘C, then the tension in the wire is (The coefficient of linear expansion of steel = 11×10−6/∘C and Y for steel 2.1×1011N/m2)

A wire of cross sectional area 3 mm2 is just stretched between two fixed points at a temperature of 20∘C . Then the tension in the wire when the temperature falls to 10∘C is, (α=1.2×10−5/∘C,Y=2×1011N/m2)

A steel wire 2 mm is diameter is just stretched between two fixed points at a temperature of 20∘C. If the temperature falls to 10∘C, then the tension in the wire is (Coefficient of linear expansion of steel (α) is 11×10−6/∘CandYs=2.1×1011N/m2)

Similar Questions

NARAYNA-MECHANICAL PROPERTIES OF SOLIDS-LEVEL-I (H.W)

$T = Y α Δ θ π r^{2}$

A wire of cross-sectional area $3 m m^{2}$ is first stretched between two fixed points at a temperature of $20^{\circ} C$ . Determine the tension when the temperature falls to $10^{\circ} C$ Coefficient of linear expansion $α = 10^{- 5} .^{\circ} C^{- 1} and Y = 2 \times 10^{11} N / m^{2}$

A wire of cross sectional area 3 $m m^{2}$ is just stretched between two fixed points at a temperature of $20^{\circ} C$ . Then the tension in the wire when the temperature falls to $10^{\circ} C$ is,
$(α = 1.2 \times 10^{- 5} /^{\circ} C, Y = 2 \times 10^{11} N / m^{2})$