ECAT Pre Engineering Physics Chapter 7 online mcq test with answers for chapter 7 (Oscillations)

Physics ECAT Pre Engineering 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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