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

In vibrational motion(SHM)

Question # 2

Free oscillations are always produced by:

Question # 3

Acceleration of body executing SHM is always directed towards

Question # 4

Hertz is unit of:

Question # 5

The restoring force is _____ and opposite to the applied force within ______,:

Question # 6

To and from motion of a body about its mean position is known as:

Question # 7

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

Question # 8

When a body is vibrating, the displacement from mean position:

Question # 9

Second's pendulum is the pendulum whose time period is:

Question # 10

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

Question # 11

In SHM, there is always a constant ratio between displacement if body and its:

Question # 12

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

Question # 13

A body with frequency would complete one vibration in:

Question # 14

The S.I unit of frequency is

Question # 15

The SI unit of spring constant is identical with that of:

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 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
2 Hertz is unit of:
A. Time period
B. Displacement
C. Amplitude
D. Frequency
3 A body with frequency would complete one vibration in:
A. f seconds
B. 1/f seconds
C. 1 second
D. f2second
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 executes SHM with frequency. The frequency with which its K.E oscillates is
A. f/2
B. 2f
C. f
D. 4f
6 Free oscillations are always produced by:
A. An applied force
B. Gravitational force
C. Restoring force and inertia
D. Inertia only
7 The string of a simple pendulum should be:
A. Heavy
B. Extensible
C. In-extensible
D. None of these
8 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:
A. 4 gms
B. 0.4 gm
C. 40 gms
D. None of these
9 If a force of 0.05 N produces an elongation of 20 mm in string, then its spring constant will be:
A. 250 N m-1
B. 25 N m-1
C. 2.5 N m-1
D. None of these
10 The unit of spring constant is:
A. J-sec
B. Metre
C. Nm-1
D. None of these

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