1
MHT CET 2019 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A particle is performing a linear simple harmonic motion of amplitude ' $A$ '. When it is midway between its mean and extreme position, the magnitudes of its velocity and acceleration are equal. What is the periodic time of the motion?

A
$\frac{2 \pi}{\sqrt{3}} \mathrm{~s}$
B
$\frac{\sqrt{3}}{2 \pi} s$
C
$2 \pi \sqrt{3} \mathrm{~s}$
D
$\frac{1}{2 \pi \sqrt{3}} \mathrm{~s}$
2
MHT CET 2019 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Three identical rods each of mass ' $M$ ' and length ' $L$ ' are joined to form a symbol ' $H$. The moment of inertia of the system about one of the sides of ' $H$ ' is

A
$\frac{2 M L^2}{3}$
B
$\frac{M L^2}{2}$
C
$\frac{M L^2}{6}$
D
$\frac{4 M L^2}{3}$
3
MHT CET 2019 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The luminous border that surrounds the profile of a mountain just before sun rises behind it, is an example of

A
dispersion
B
total internal reflection
C
interference
D
diffraction
4
MHT CET 2019 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A block of mass ' $m$ ' moving on a frictionless surface at speed ' $v$ ' collides elastically with a block of same mass, initially at rest. Now the first block moves at an angle ' $\theta$ ' with its initial direction and has speed ' $v_1$ '. The speed of the second block after collision is

A
$\sqrt{v_1^2-v^2}$
B
$\sqrt{v^2-v_1^2}$
C
$\sqrt{v^2+v_1^2}$
D
$\sqrt{v-v_1}$
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