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Byju's Answer
Standard XII
Physics
Thermal Expansion
Consider the ...
Question
Consider the following statements.
A
The coefficient of linear expansion has dimension
K
−
1
.
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B
The coefficient of volume expansion has dimension
K
1
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C
A and B are both correct.
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D
A is correct but B is wrong.
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Solution
The correct option is
D
The coefficient of linear expansion has dimension
K
−
1
.
The formula for the change in length due to temperature is:
=
△
L
=
L
α
L
△
T
So, the coefficient of linear expansion is:
α
L
=
△
L
L
△
T
Unit of
α
L
=
[
M
]
[
M
]
[
K
]
=
K
−
1
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0
Similar questions
Q.
Consider the following statements.
(A) The coefficient of linear expansion has dimension K
–1
.
(B) The coefficient of volume expansion has dimension K
–1
.
(a) A and B are correct.
(b) A is correct but B is wrong.
(c) B is correct but A is wrong.
(d) A and B are wrong.
Q.
Consider the following statements.
(A) The coefficient of linear expansion has dimension
K
−
1
(B) The coefficient of volume expansion has dimension
K
−
1
Q.
Assertion :The dimension of coefficient of volume expansion is
K
−
1
. Reason: The coefficient of volume expansion is defined as the change in volume per unit volume per unit change in temperature.
Q.
A crystal has linear coefficient of expansion
9
×
10
−
5
,
12
×
10
−
5
,
7
×
10
−
5
/
K
along three mutually perpendicular directions the volume expansion coefficient is
Q.
Find the dimension of 'The coefficient of the linear expansion' .
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