1
COMEDK 2023 Morning Shift
MCQ (Single Correct Answer)
+1
-0

In the figure, pendulum bob on left side is pulled a side to a height $$h$$ from its initial position. After it is released it collides with the right pendulum bob at rest, which is of same mass. After the collision, the two bobs stick together and rise to a height

COMEDK 2023 Morning Shift Physics - Center of Mass and Collision Question 5 English

A
$$\frac{3 h}{4}$$
B
$$\frac{2 h}{3}$$
C
$$\frac{h}{2}$$
D
$$\frac{h}{4}$$
2
COMEDK 2023 Morning Shift
MCQ (Single Correct Answer)
+1
-0

A gas is taken through the cycle $$A \rightarrow B \rightarrow C \rightarrow A$$, as shown in figure. What is the net work done by the gas?

COMEDK 2023 Morning Shift Physics - Heat and Thermodynamics Question 19 English

A
2000 J
B
1000 J
C
Zero
D
$$-2000$$ J
3
COMEDK 2023 Morning Shift
MCQ (Single Correct Answer)
+1
-0

The gases carbon monoxide $$(\mathrm{CO})$$ and nitrogen at the same temperature have kinetic energies $$E_1$$ and $$E_2$$, respectively. Then,

A
$$E_1=E_2$$
B
$$E_1> E_2$$
C
$$E_1< E_2$$
D
None of these
4
COMEDK 2023 Morning Shift
MCQ (Single Correct Answer)
+1
-0

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 $$3 A$$. If the length of the first wire is increased by $$\Delta l$$ on applying a force $$F$$, how much force is needed to stretch the second wire by the same amount?

A
4F
B
6F
C
9F
D
F
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