Advertisements
Advertisements
Question
The stress-strain graphs for two materials are shown in figure (assume same scale).
 Material (i) |
 Material (i) |
- Material (ii) is more elastic than material (i) and hence material (ii) is more brittle.
- Material (i) and (ii) have the same elasticity and the same brittleness.
- Material (ii) is elastic over a larger region of strain as compared to (i).
- Material (ii) is more brittle than material (i).
Solution
c and d
Explanation:
Because while we compare the ultimate tensile strength of materials we get that (ii) is greater than (i). Thus, (ii) is elastic as compared to (i) over the larger region which implies (ii) is elastic as compared to (i) over a larger region of strain.
APPEARS IN
RELATED QUESTIONS
Anvils made of single crystals of diamond, with the shape as shown in Figure, are used to investigate the behaviour of materials under very high pressures. Flat faces at the narrow end of the anvil have a diameter of 0.50 mm, and the wide ends are subjected to a compressional force of 50,000 N. What is the pressure at the tip of the anvil?
Answer in one sentence.
Why bridges are unsafe after very long use?
Answer in one sentence.
What do you mean by elastic hysteresis?
Answer in short.
What do you mean by brittle substance? Give any two examples.
Long answer type question.
Define stress and strain. What are their different types?
Long answer type question.
Draw a labelled graph of tensile stress against tensile strain for a metal wire up to the breaking point. In this graph show the region in which Hooke’s law is obeyed.
Answer in one sentence:
What is an elastomer?
Answer in one sentence:
What is an elastomer?
Answer in one sentence:
What is an elastomer?
Answer in one sentence:
What is an elastomer?
