ECAT Pre Computer Science Chapter 8 MCQ Test With Answer

Top Scorers Of ECAT Physics Chapter 8 Waves MCQ`s Test

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Aniq Khan 11 - Mar - 2024 01 Min 59 Sec 60/60
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Haseeb Ur Rehman raja 25 - Jun - 2024 00 Min 05 Sec 55/60
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Shayan Rajpoot 16 - Jul - 2024 01 Min 09 Sec 55/60
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Ahmed Chandio 01 - Aug - 2024 01 Min 21 Sec 55/60
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Manoush Fatima 31 - May - 2024 03 Min 05 Sec 55/60
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Abdullah Baloch 02 - Aug - 2024 05 Min 14 Sec 55/60
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syed muhammad aans irfan 09 - Jan - 2025 04 Min 34 Sec 50/60
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Muhammad Hashim 01 - Jun - 2024 02 Min 11 Sec 45/60
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M.Faiq 21 - May - 2024 02 Min 22 Sec 45/60
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Zain hassan Zain 23 - May - 2024 02 Min 46 Sec 45/60
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Zaka Ullah 10 - Nov - 2024 02 Min 56 Sec 45/60
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Ahmad Khan 11 - Sep - 2024 05 Min 50 Sec 45/60
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nabi bux 17 - Aug - 2024 07 Min 48 Sec 45/60
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Uzair kk 22 - Jun - 2024 10 Min 19 Sec 45/60
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Rabia 76 03 - Jun - 2024 02 Min 21 Sec 40/60

ECAT Physics Chapter 8 Important MCQ's

Sr.#	Question	Answer
1	Mechanical waves on the surface of a liquid are	A. Transverse B. Longitudinal C. Torsional D. both transverse and longitudinal
2	When a mass 'm' is pulled slowly through a distance 'x_o' , the elastic potential energy of the spring would be	A. P.E=Kx²_o B. P.E= 1/2kx_o C. P.E=1/2Kx²_o D. P.E=Kx²_o
3	Which of the following does not exhibit S.H.M?	A. a plucked violin string B. a mass attached to a spring C. a train shunting between two terminals D. a simple pendulum
4	A body is executing free vibrations when it oscilates	A. with the interference of an external force B. without the interference of an external force C. with the interference of an internal force D. none of them
5	A stationary sound wave has frequency 165 Hz (speed of sound in air = 330 m/s) then distance between two consecutive nodes is	A. 2 m B. 1 m C. 0.5 m D. 4 m
6	If a freely oscillating system is subjected to an external force, then	A. free vibrations will take place B. the body will move with its natural frequency C. forced vibrations will take place D. none of them
7	The velocity of sound in air not effected by changes in	A. Moisture contents in air B. Temperature of air C. The atmosphere pressure D. The composition of air
8	Smaller the damping, greater will be the	A. frequency B. wavelength C. amplitude D. none of them
9	The waves moving from a sitar to a listener in air are	A. Longitudinal progressive B. Longitudinal stationary C. Transverse progressive D. Transverse stationary
10	Which one is not produced by sound waves in air?	A. Polarization B. Diffraction C. Refraction D. Reflection

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ECAT Pre Computer Science Chapter 8 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 8 Waves

ECAT Physics Chapter 8 Waves

The phase determines the

The frequency of free vibrations is known as

A string is stretched between two points and is plucked at right angles to its length, the vibration produced is:

A stationary sound wave has frequency 165 Hz (speed of sound in air = 330 m/s) then distance between two consecutive nodes is

The waves in which the particles of the medium are displaced in a direction perpendicular to the direction of propagation of waves are known as

Laplace formula is derived from

Crests and troughs are formed in:

Which of the following is/are example/s if mechanical waves i.e. waves generated in _______:

If the external driving force is periodic with a period compareable to the natural period of the oscillator, then we get

The characteristic of a body executing S.H.M is that its acceleration is

The temperature at which the speed of sound becomes double as was at 27°C is

The square of 0.4 is:

In the resonance condition, the amplitude of the oscillator becomes

The wave form of S.H.M will be

The velocity of sound at same temperature is maximum in

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Top Scorers Of ECAT Physics Chapter 8 Waves MCQ`s Test

ECAT Physics Chapter 8 Important MCQ's

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