ECAT Pre General Science Physics Chapter 7 Oscillations Online Test With Answers

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ECAT Pre General Science 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
16 The time period of a simple pendulum is independent of its: Length Mass Value of g Both A and B
17 A body of mass 0.031 kg attached to one end of a spring of spring constant 0.3 N/m, then time period of spring mass system will be: 1.5 sec 2.0 sec 2.3 sec 2.5 sec
18 Distance covered during one vibration of an oscillating body in terms of amplitude A is: A 2 A 3 A 4 A
19 When quarter of a circle 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>
20 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
21 Amplitude in SHM is equivalent to ______ in circular motion Diameter Radius Circumference None of these
22 The graph showing the variation of displacement with time is a Sine curve Straight line Parabola None of these
23 When a body is vibrating, the displacement from mean position Increases with time Decreases with time Changes with time None of these
24 The restoring force is ______ and opposite tot he applied force within ______ Equal, Elastic limit Different, The walls of the laboratory Different, Elastic limit None of these
25 The SI unit of spring constant is identical with that of Force Surface tension Pressure Loudness
26 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
27 The unit of spring constant is J-sec Metre Nm<sup>-1</sup> None of these
28 If time period of a pendulum is doubled by increasing its length, then its frequency will Also be doubled Become half Become one fourth Becomes four times
29 Velocity of particle executing SHM will be maximum at Extreme position Mean position b/w mean and extreme None
30 A particle executes SHM with frequency. The frequency with which its K.E oscillates is f/2 2f f 4f
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