1
MHT CET (PCB) 2024 22th April Morning Shift
MCQ (Single Correct Answer)
+1
-0
A satellite is revolving round the earth with orbital speed ' $\mathrm{V}_0$ '. If it stops suddenly, the speed with which it will strike the surface of the earth would be ( $\mathrm{V}_{\mathrm{e}}=$ escape velocity of a particle on earth's surface)
A
$\frac{\mathrm{V}_{\mathrm{c}}^2}{\mathrm{~V}_0}$
B
$\quad 2 \mathrm{~V}_0$
C
$\sqrt{V_e^2-V_0^2}$
D
$\sqrt{\mathrm{V}_{\mathrm{e}}^2-2 \mathrm{~V}_0^2}$
2
MHT CET (PCB) 2024 22th April Morning Shift
MCQ (Single Correct Answer)
+1
-0

The angular momentum of electron in hydrogen atom in first orbit is ' $L$ '. The change in angular momentum if electron is in second orbit of hydrogen atom is

A
2 L
B
L
C
$\frac{\mathrm{L}}{2}$
D
4 L
3
MHT CET (PCB) 2024 22th April Morning Shift
MCQ (Single Correct Answer)
+1
-0

Four point masses, each of mass ' $m$ ' are arranged in $X-Y$ plane as shown in the figure. The moment of inertia of this system about $X$-axis is

MHT CET (PCB) 2024 22th April Morning Shift Physics - Rotational Motion Question 4 English
A
$3 \mathrm{ma}^2$
B
$5 \mathrm{ma}^2$
C
$4 \mathrm{ma}^2$
D
$6 \mathrm{ma}^2$
4
MHT CET (PCB) 2024 22th April Morning Shift
MCQ (Single Correct Answer)
+1
-0

In biprism experiment the maximum intensity is ' $\mathrm{I}_0$ '. If the path difference between the two interfering waves is ' $\lambda / 4$ ' then intensity at the point on the screen is

$$ \left[\sin 45^{\circ}=\cos 45^{\circ}=\frac{1}{\sqrt{2}}\right] $$

A
$\frac{\mathrm{I}_0}{4}$
B
$\frac{\mathrm{I}_0}{3}$
C
$\frac{\mathrm{I}_0}{2}$
D
$\mathrm{I}_0$
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