ECAT Pre Engineering Physics Chapter 7 MCQ Test With Answer

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

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

Question # 2

A body with frequency would complete one vibration in:

Question # 3

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

Question # 4

The body oscillates due to ______ accelerates and overshoots the rest position due to _____:

Question # 5

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

Question # 6

The S.I unit of frequency is

Question # 7

If mass of 10 gm is suspended from a spring of K=0.8 Nm-1then the extension will be:

Question # 8

In vibrational motion(SHM)

Question # 9

The body oscillates due to _____ accelerates and overshoots the rest position due to______,:

Question # 10

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

Question # 11

When quarter of a circle is completed, phase of vibration is:

Question # 12

The displacement of body executing SHM is

Question # 13

The number of vibration in two seconds can be expressed as
______ of frequency of vibration is f:

Question # 14

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

Question # 15

The restoring force is always directed towards:

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 Which one of the following is an example of SHM
A. Motion in a plane
B. Motion in a swing
C. Motion in a car
D. None of these
2 The wave form of SHM is
A. Pulsed wave
B. Square wave
C. Triangular waved
D. Sine wave
3 If time period of a pendulum is doubled by increasing its length, then its frequency will
A. Also be doubled
B. Become half
C. Become one fourth
D. Becomes four times
4 If there identical strings each of constant K are hooked together the spring constant of resultant spring will be:
A. 3 K
B. 2 K
C. K/4
D. K/3
5 A particle is moving along a circular path with uniform speed. Its projection will execute____along the____of the circle:
A. Circular motion, circumference
B. Vibrator, chord
C. SHM, diameter
D. SHM, circumference
6 Vibratory motion is always under
A. Applied force
B. Restoring force
C. Periodic force
D. Gravitational force
7 When a mass attached to a spring begins to move left or right from the equilibrium position, its P.E.:
A. Increases
B. Decreases
C. Remains constant
D. None of these
8 If a given spring of spring constant K is cut into two identical segments, the spring constant of each segment is:
A. K/2
B. 2 K
C. 4 K
D. None of these
9 The restoring force is ______ amd opposite to the applied force within _____:
A. Equal, elastic limit
B. Different, the walls of the laboratory
C. Different, elastic limit
D. None of these
10 Second's pendulum is the pendulum whose time period is:
A. 1 second
B. 2 second
C. 3 second
D. None of these

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