1
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

If the radius of the circular path and frequency of revolution of a particle of mass $m$ are doubled, then the change in its kinetic energy will be $\left(E_i\right.$ and $E_1$ are the initial and final kinetic energies of the particle respectively,)

A
12 $E_f$
B
13 $E_i$
C
8 $E_f$
D
15 $E_i$
2
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The total energy of a simple harmonic oscillaior is proportional to

A
square of this ampitude
B
square root of displacement
C
amplitude
D
frequency
3
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The rms speed of oxygen molecule in a gas is $u$, If the temperature is doubled and the molecules dissociates into two atoms, the rms speed will be

A
4u
B
u
C
2u
D
u$\sqrt2$
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