ECAT Pre Engineering Physics Chapter 7 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 7 Oscillations

Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 7 Oscillations

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Physics ECAT Pre Engineering Chapter 7 Oscillations

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Question # 1

The displacement of body executing SHM is

Question # 2

A spring of constant k = 0.4 N m-1is to be extended through 10 cm at a place where g = 10 m sec-2. The mass to be suspended should be:

Question # 3

If time period of a pendulum is doubled by increasing its length, then its frequency will

Question # 4

If the waves produced in a microwave oven are of wave-length 12 cm, then their frequency will be:

Question # 5

If a mass of 10 gm is suspended from a spring of k = 9.8 Nm-1, then the extension will be:

Question # 6

A body with frequency would complete one vibration in:

Question # 7

Amplitude in SHM is equivalent to_____ in circular motion:

Question # 8

In vibrational motion(SHM)

Question # 9

Which of the following is an example of SHM(in ideal situations)

Question # 10

Amplitude in SHM is equivalent to ______ in circular motion

Question # 11

A particle executes SHM with frequency. The frequency with which its K.E oscillates is

Question # 12

Acceleration of body executing SHM is always directed towards

Question # 13

If a force of 0.05 N produces an elongation of 20 mm in a string, then its spring constant will be:

Question # 14

Which one of the following is an example of SHM

Question # 15

An oscillating body oscillates due to:

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 When quarter of a circle is completed, the phase of vibration is:
A. 90°
B. 180°
C. 45°
D. 360°
2 Free oscillations are always produced by:
A. An applied force
B. Gravitational force
C. Restoring force and inertia
D. Inertia only
3 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:
A. 1.5 sec
B. 2.0 sec
C. 2.3 sec
D. 2.5 sec
4 The graph showing the variation of displacement with time is a:
A. Sine curve
B. Straight line
C. Parabola
D. None of these
5 The maximum distance of body from mean position when body is executing SHM is called
A. Time period
B. Displacement
C. Amplitude
D. Frequency
6 A body with frequency would complete one vibration in:
A. f seconds
B. 1/f seconds
C. 1 second
D. f2second
7 The body oscillates due to _____ accelerates and overshoots the rest position due to______,:
A. Applied force, inertial
B. Restoring force, friction
C. Frictional force, inertial
D. Restoring force, inertial
8 The restoring force is always directed towards:
A. Rest position
B. Equilibrium position
C. Mean position
D. All of them
9 If the waves produced in a microwave oven are of wave-length 12 cm, then their frequency will be:
A. 2500 MHz
B. 0.25 MHz
C. 2500 KHz
D. None of these
10 The wave form of SHM is
A. Pulsed wave
B. Square wave
C. Triangular waved
D. Sine wave

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