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Phenomena of Wave 2 - Difraction and Interference
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1.
What is diffraction?
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Diffraction is a change in the direction of the waves. |
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Diffraction is an increase in the speed of the waves. |
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Diffraction is the spreading of the waves when it passes through an aperture or round a small obstacle. |
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2.
The effect of diffraction of a wave increases as the
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3.
The effect of diffraction of a wave decreases as the
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4.
Which of the following properties of a wave will remain unchanged after experiencing diffraction?
I wavelength
II frequency
III amplitude
I wavelength
II frequency
III amplitude
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5. Figure above shows two impulse moving toward each others. If the amplitude of the two impulse are 5cm and 10cm respectively, what is the maximum resultant displacement of the impulse at the instant they coincident with each other?
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6.
Coherent waves are waves that
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7.
Interference of waves is due to
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8. Constructive interference will happen when
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two waves which is anti-phase superposition with each others. |
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two waves which is anti-phase and have same amplitude superposition with each others |
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two waves which is in phase superposition with each others. |
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two waves which is in phase and have same frequency superposition with each others. |
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9.
Figure above shows an interference pattern of two coherent waves. Which of the positions does constructive interference occur?
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10. Figure above shows an interference pattern of two coherent water waves. Which of the points among P, Q, R and S are nodes?
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11. Two round dippers separated by a distance of 6.0 cm is connected to a vibrator to produce two coherent sources of spherical waves. The distance between the sources and where x is measured is 20.0 cm. If the distance between two successive anti-node lines is 3.0 cm, determine the wavelength for the spherical wave.
Magnetic Field
A magnetic field is a region in the surrounding of a magnet which a magnetic material experiences a detectable force.
A magnetic field is a region in the surrounding of a magnet which a magnetic material experiences a detectable force.
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