1
MHT CET 2021 23th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

A molecule consists of two atoms each of mass '$$m$$' and separated by a distance '$$\mathrm{d}$$'. At room temperature, if the average rotational kinetic energy is '$$E$$' then the angular frequency is

A
$$\frac{2}{\mathrm{~d}} \sqrt{\frac{\mathrm{E}}{\mathrm{m}}}$$
B
$$\frac{\mathrm{d}}{2} \sqrt{\frac{\mathrm{m}}{\mathrm{E}}}$$
C
$$\sqrt{\frac{E d}{m}}$$
D
$$\sqrt{\frac{m}{E d}}$$
2
MHT CET 2021 23th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

Three solid spheres each of mass '$$M$$' and radius '$$R$$' are arranged as shown in the figure. The moment of inertia of the system about YY' will be

MHT CET 2021 23th September Morning Shift Physics - Rotational Motion Question 8 English

A
$$\frac{16}{5} \mathrm{MR}^2$$
B
$$\frac{21}{5} \mathrm{MR}^2$$
C
$$\frac{7}{5} \mathrm{MR}^2$$
D
$$\frac{11}{5} \mathrm{MR}^2$$
3
MHT CET 2021 23th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

MHT CET 2021 23th September Morning Shift Physics - Rotational Motion Question 9 English

Figure shows triangular lamina which can rotate about different axes moment of inertia is maximum, about the axis

A
PR
B
QS
C
QR
D
PQ
4
MHT CET 2021 22th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

A particle with position vector $$\overrightarrow{\mathrm{r}}$$ has a linear momentum $$\overrightarrow{\mathrm{P}}$$. Which one of the following statements is true in respect of its angular momentum 'L' about the origin?

A
$$\overrightarrow{\mathrm{L}}$$ acts along $$\overrightarrow{\mathrm{P}}$$.
B
L is maximum when $$\overrightarrow{\mathrm{P}}$$ is perpendicular to $$\overrightarrow{\mathrm{r}}$$.
C
$$\overrightarrow{\mathrm{L}}$$ acts along $$\overrightarrow{\mathrm{r}}$$.
D
L is maximum when $$\overrightarrow{\mathrm{P}}$$ and $$\overrightarrow{\mathrm{r}}$$ are parallel.
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