A level Waves Quiz 1

Quiz Description

A level Waves Quiz. In physics, mathematics, and related fields, a wave is a propagating dynamic disturbance (change from equilibrium) of one or more quantities, sometimes as described by a wave equation. In physical waves, at least two field quantities in the wave medium are involved. Waves can be periodic, in which case those quantities oscillate repeatedly about an equilibrium (resting) value at some frequency. When the entire waveform moves in one direction it is said to be a traveling wave; by contrast, a pair of superimposed periodic waves traveling in opposite directions makes a standing wave. In a standing wave, the amplitude of vibration has nulls at some positions where the wave amplitude appears smaller or even zero.

The types of waves most commonly studied in classical physics are mechanical and electromagnetic. In a mechanical wave, stress and strain fields oscillate about a mechanical equilibrium. A mechanical wave is a local deformation (strain) in some physical medium that propagates from particle to particle by creating local stresses that cause strain in neighboring particles too. For example, sound waves are variations of the local pressure and particle motion that propagate through the medium. Other examples of mechanical waves are seismic waves, gravity waves, surface waves, string vibrations (standing waves), and vortices[dubious discuss].

In an electromagnetic wave (such as light) energy is interchanged between the electric and magnetic fields which sustains propagation of a wave involving these fields according to Maxwell's equations. Electromagnetic waves can travel through a vacuum and through some dielectric media (at wavelengths where they are considered transparent). Electromagnetic waves, according to their frequencies (or wavelengths) have more specific designations including radio waves, infrared radiation, terahertz waves, visible light, ultraviolet radiation, X-rays and gamma rays.

X-ray waves, television waves and radio waves are the examples of

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• mechanical waves
• transverse waves
• longitudinal waves
• electromagnetic waves

Waves which require medium for propagation are

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• electromagnetic
• mechanical
• transverse
• longitudinal

Longitudinal waves move faster through

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• liquids
• gases
• solids
• none of above

The mechanical waves in which particles of the medium vibrate about their mean position perpendicular to the direction of propagation of the waves are called

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• transverse waves
• longitudinal waves
• mechanical waves
• electromagnetic waves

A disturbance in the medium which causes the particles of the medium to undergo vibratory motion about their mean position in equal intervals of time is known as

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• wave
• energy
• vibration
• amplitude

When waves moving in one medium fall on the surface of another medium they bounce back into the first medium such that the angle of incidence is equal to the angle of reflection. This phenomenon is known as

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• refraction of waves
• diffraction of waves
• reflection of waves
• deflection of waves

Water waves and sound waves are the examples of

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• transverse waves
• longitudinal waves
• mechanical waves
• electromagnetic waves

he mechanical waves in which particles of the medium vibrate about their mean position along the direction of propagation of the waves are called

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• transverse waves
• longitudinal waves
• mechanical waves
• electromagnetic waves

To produce both transverse and longitudinal waves, we can use a

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• string
• helical spring
• ripple tank
• tuning fork

As compare to longitudinal waves, the transverse waves move through solids at a speed of

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• less than half
• less than one
• half
• less than quarter

If speed is 180 ms-1 and frequency is 200 Hz, The wavelength should be

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• 0.9 m
• 0.5 m
• 1.2 m
• 2 m

A human ear can oscillate back and forth up to

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• 18,000 times per second
• 200 times per second
• 20,000 times per second
• 100 times per second

A device to produce water waves and to study their characteristics is known as

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• screw gauge
• ripple tank
• measuring cylinder
• wave container

From one place to another, through waves, we can transfer

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• heat
• energy
• sound
• gas

The speed of a wave in water depends on the

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• depth of tank
• temperature
• depth of water
• none of above

The characteristic of wave independent of others is

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• frequency
• speed
• wavelength
• amplitude