Class 11 Physics · Chapter 5 · Test 1
Stress, Strain, Young's Modulus
35 MCQs This test covers crystalline, amorphous and polymeric solids, stress, strain, elasticity and Young’s modulus. It also covers Searle’s method and related numericals.
35 questions · 30 min · 35 marks
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Sample questions
The first 5 of 35. Try each one, then tap to see the answer.
Question 1
Which type of solid has a regular, repeating arrangement of atoms, molecules or ions throughout?
- AAmorphous solid
- BCrystalline solid
- CPolymeric solid only
- DGlassy solid
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Answer: B
Crystalline solids have an ordered structure with a regular pattern that is consistent throughout the crystal.
Question 2
Which of the following is a crystalline solid?
- APlastic
- BOrdinary glass
- CDiamond
- DRubber
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Answer: C
Diamond, sugar and mica are examples of crystalline solids.
Question 3
Which technique is used to study the arrangement of atoms in crystalline solids?
- ACalorimetry
- BChromatography
- CX-ray diffraction (XRD)
- DBarometry
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Answer: C
XRD and Transmission Electron Microscopy are used to study the atomic arrangement in crystals.
Question 4
Why does a crystalline solid have a sharp, definite melting point?
- AIts atoms do not vibrate
- BCohesive forces maintain long-range order until a particular temperature, when the structure suddenly breaks up
- CIt has no ordered structure
- DIt absorbs no heat
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Answer: B
The transition from solid to liquid is abrupt because long-range order persists until the melting temperature is reached.
Question 5
Which of the following has no definite melting point?
- ASugar
- BMica
- CDiamond
- DPlastic
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Answer: D
Amorphous solids such as plastic and glass soften gradually and have no definite melting point.
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