1
NEET 2019
+4
-1
Average velocity of a particle executing SHM in one complete vibration is :
A
A$$\omega$$
B
$${{A{\omega ^2}} \over 2}$$
C
$${{A\omega } \over 2}$$
D
zero
2
NEET 2019
+4
-1
The displacement of a particle executing simple harmonic motion is given by

y = A0 + A sin$$\omega$$t + B cos$$\omega$$t.

Then the amplitude of its oscillation is given by :
A
$$\sqrt {{A^2} + {B^2}}$$
B
A + B
C
A + $$\sqrt {{A^2} + {B^2}}$$
D
$$\sqrt {A_0^2 + {{\left( {A + B} \right)}^2}}$$
3
NEET 2018
+4
-1
A pendulum is hung from the roof of a sufficiently high building and is moving freely to and fro like a simple harmonic oscillator. The acceleration of the bob of the pendulum is 20 m s–2 at a distance of 5 m from the mean position. The time period of oscillation is
A
2$$\pi$$ s
B
$$\pi$$ s
C
2 s
D
1 s
4
NEET 2017
+4
-1
A spring of force constant k is cut into lengths of ratio 1 : 2 : 3. They are connected in series and the new force constant is K'. Then they are connected in parallel and force constant is k''. Then k' : k'' is
A
1 : 9
B
1 : 11
C
1 : 14
D
1 : 6
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