1
COMEDK 2022
MCQ (Single Correct Answer)
+1
-0

From the following p-V diagram, an ideal gas undergoing a change of state from A to B. Four different processes I, II, III and IV as shown in the figure may lead to same change of state.

COMEDK 2022 Physics - Heat and Thermodynamics Question 23 English

A
work done is maximum in case I
B
Change in internal energy is same in all the four cases
C
Change in internal energy is same in IV and III cases, but not in I and II cases
D
Work done is minimum in Case II
2
COMEDK 2022
MCQ (Single Correct Answer)
+1
-0

A copper and a steel wire of same diameter are connected end to end. A deforming force F$$_1$$ is applied to the wire which causes an elongation of 1 cm. The two wires will have

A
the same stress
B
different stress
C
the same strain
D
different strain
3
COMEDK 2022
MCQ (Single Correct Answer)
+1
-0

If kinetic energy of a body is increased by 300%, then percentage change in momentum will be

A
100%
B
150%
C
265%
D
73.2%
4
COMEDK 2022
MCQ (Single Correct Answer)
+1
-0

Which of the following diagram represents the variation of the electric field with distance r from the centre of a uniformly charged non-conducting sphere of radius R?

A
COMEDK 2022 Physics - Electrostatics Question 22 English Option 1
B
COMEDK 2022 Physics - Electrostatics Question 22 English Option 2
C
COMEDK 2022 Physics - Electrostatics Question 22 English Option 3
D
COMEDK 2022 Physics - Electrostatics Question 22 English Option 4
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