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NEET Previous Year Questions (2014-20): Mechanical Properties of Solids Class 11 Notes | EduRev

Physics 28 Years Past year papers for NEET/AIPMT Class 11

Class 11 : NEET Previous Year Questions (2014-20): Mechanical Properties of Solids Class 11 Notes | EduRev

The document NEET Previous Year Questions (2014-20): Mechanical Properties of Solids Class 11 Notes | EduRev is a part of the Class 11 Course Physics 28 Years Past year papers for NEET/AIPMT Class 11.

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Q.1. Dimensions of stress are : [2020]
A: [ML⁰T^–2]
B: [ML^–1T^–2]
C: [MLT^–²]
D: [ML²T^–2]
Ans: B
NEET Previous Year Questions (2014-20): Mechanical Properties of Solids Class 11 Notes | EduRev

Q.2. A wire of length L, area of cross section A is hanging from a fixed support. The length of the wire changes to L₁ when mass M is suspended from its free end. The expression for Young's modulus is : [2020]
A:

B:

C:

D:
NEET Previous Year Questions (2014-20): Mechanical Properties of Solids Class 11 Notes | EduRev
Ans: B
from young’s modulus formula

Q.3. When a block of mass M is suspended by a long wire of length L, the length of the wire becomes (L + l). The elastic potential energy stored in the extended wire is: [2019]
A: Mgl
B: MgL
C:
D:
Ans: C
Solution:
NEET Previous Year Questions (2014-20): Mechanical Properties of Solids Class 11 Notes | EduRev
U = 1/2 ((work done by gravity)

Q.4. Two wires are made of the same material and have the same volume. The first wire has cross-sectional area A and the second wire has cross-sectional area 3A. If the length of the first wire is increased by Δl on applying a force F, how much force is needed to stretch the second wire by the same amount ? [2018]
A: 9F
B: 6F
C: 4F
D: F
Ans: A
Solution:
NEET Previous Year Questions (2014-20): Mechanical Properties of Solids Class 11 Notes | EduRev

Q.5. The bulk modulus of a spherical object is 'B'. If it is subjected to uniform pressure 'p', the fractional decrease in radius is:- [2017]
A:
B:
C:
D:
Ans: C
Solution:

Q.6. Copper of fixed volume ‘V’ is drawn into wire of length ‘l’. When this wire is subjected to a constant force ‘F’, the extension produced in the wire is ‘Δl’. Which of the following graphs is straight line? [2014]
A: Δl versus l/l²
B: Δl versus l
C: Δl versus l/l
D: Δl versus l²
Ans: D
Solution:
NEET Previous Year Questions (2014-20): Mechanical Properties of Solids Class 11 Notes | EduRev

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Physics 28 Years Past year papers for NEET/AIPMT Class 11

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