EASY
Earn 100

An example of malleable material is 

50% studentsanswered this correctly

Important Questions on Properties of Matter and Materials

MEDIUM
The elastic limit of brass is 379 MPa. The minimum diameter of a brass rod if it is to support a 400 N load without exceeding its elastic limit will be
EASY
Breaking stress of a steel wire is p and the density of steel is ρ. The greatest length of steel wire that can hang vertically without breaking is
EASY
A wire of diameter 1 mm breaks under a tension of 1000 N. Another wire of the same material as that of the first one, but of diameter 2 mm breaks under a tension of:
HARD
In plotting stress versus strain curves for two materials P and Q , a student by mistake puts strain on the y -axis and stress on the x - axis as shown in the figure. Then the correct statement(s) is(are)

Question Image
MEDIUM
The stress-strain graphs for materials A and B are shown in the figure.
Question Image
The graphs are drawn to the same scale.
Which of the two is the stronger material?
MEDIUM
What are the important characteristics of the stress-strain curve of the elastic tissue of aorta?
EASY
What is the importance of the large elastic region in the stress-strain curve of the elastic tissue of the aorta?
MEDIUM

Represent the union of two sets by Venn diagram for each of the following.

X={x | x is a prime number between 80 and 100}

Y={y | y is an odd number between 90 and 100}

MEDIUM
What is the miller indices of the shaded plane in the cubical unit cell ?


Question Image
EASY

Determine the region where Hooke’s law is obeyed, the ultimate strength point and fracture point in the given stress-strain graph.

Question Image

HARD
Draw the stress-strain curve for the tissue of the aorta. What is the importance of the area within the curves for loading and unloading?
EASY

What mass of Carbon in grams is present in 0.01 mole of Buckminster fullerene?

Atomic mass of carbon=12 u

EASY
Which of the following is not a feature of the stress-strain curve for elastic tissue of aorta:
EASY
Which of the following is correct regarding diad axis of symmetry?
MEDIUM
Point 'A' is the proportionality limit and point 'B' is the elastic limit in a stress-strain curve for an elastic material. Which of the following statement is wrong?
EASY
Elastic region is very large and the proportional region is very small in:
MEDIUM

Figure below shows the strain-stress curve for a given material. What is approximate yield strength for this material?

Question Image