ECAT Physics Chapter 7 Oscillations Online Test With Answers

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ECAT Physics Chapter 7 Oscillations Online Test

Sr. # Questions Answers Choice
1 When quarter of a cycle is completed, the phase of vibration is: 90<span style="font-size: 10.5pt; line-height: 107%; font-family: Arial, sans-serif; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">°</span> 180<span style="font-size: 10.5pt; line-height: 107%; font-family: Arial, sans-serif; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">°</span> 45<span style="font-size: 10.5pt; line-height: 107%; font-family: Arial, sans-serif; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">°</span> 360<span style="font-size: 10.5pt; line-height: 107%; font-family: Arial, sans-serif; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">°</span>
2 The body oscillates due to ______ accelerates and overshoots the rest position due to _____: Applied force , inertia Restoring force, friction Frictional force, inertia Restoring force, inertia
3 Amplitude in SHM is equivalent to_____ in circular motion: Diameter Radius Circumference None of these
4 The graph showing the variation of displacement with time is a: Sine curve Straight line Parabola None of these
5 When a body is vibrating, the displacement from mean position: Increases with time Decreases with time Changes with time None of these
6 The restoring force is ______ amd opposite to the applied force within _____: Equal, elastic limit Different, the walls of the laboratory Different, elastic limit None of these
7 The SI unit of spring constant is identical with that of: Force Surface tension Pressure Loudness
8 Which one of the following is an example of SHM: Motion in a plane Motion in a swing Motion in a car None of these
9 The unit of spring constant is: J-sec Metre Nm<sup>-1</sup> None of these
10 To and fro motion of a body is about its mean position is known as: Translatory motion Vibratory motion Rotatory motion None of these
11 If the waves produced in a microwave oven are of wave-length 12 cm, then their frequency will be: 2500 MHz 0.25 MHz 2500 KHz None of these
12 Free oscillations are always produced by: An applied force Gravitational force Restoring force and inertia Inertia only
13 An object undergoes SHM. Its maximum equilibrium positions: Maximum Half of its maximum value Zero None
14 Second's pendulum is the pendulum whose time period is: 1 second 2 second 3 second None of these
15 The string of a simple pendulum should be: Heavy Extensible In-extensible None of these
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