refraction reflection diffraction questions previous next Diffraction is

$refraction reflection diffraction questions$

$• Diffraction is the spreading out of waves at edges and gaps. •$

$Small amount of spreading (diffraction) The wavelength of the waves is much smaller than$

The wavelength is the same size as the gap so there is very good

Speed of sound in air = 330 m/s Typical frequency = 440 Hertz Work

$To get spreading (diffraction) of the light the gap it passes through has to$

$For edges Long wavelengths diffract more than short wavelengths. For gaps The wavelength should$

The aerial is on a pole to try and improve the reception of radio

$There is very little diffraction of short wavelength radio waves when they pass between$

$Long wavelength radio waves are more likely to be diffracted when they pass between$

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$refraction reflection diffraction questions$

refraction reflection diffraction questions

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$• Diffraction is the spreading out of waves at edges and gaps. •$

• Diffraction is the spreading out of waves at edges and gaps. • All types of waves can be diffracted. • The amount of diffraction is affected by the size of the gap and the wavelength. previous next

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$Small amount of spreading (diffraction) The wavelength of the waves is much smaller than$

Small amount of spreading (diffraction) The wavelength of the waves is much smaller than the size of the gap previous next

The wavelength is the same size as the gap so there is very good spreading (diffraction) previous next

Speed of sound in air = 330 m/s Typical frequency = 440 Hertz Work out the wavelength of these sound waves Speed = wavelength x frequency Wavelength = speed/frequency Wavelength = 330/440 = 0. 75 metres About the same size as the width of a door previous next

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$To get spreading (diffraction) of the light the gap it passes through has to$

To get spreading (diffraction) of the light the gap it passes through has to be very small-because the wavelength of light is very small previous next

$For edges Long wavelengths diffract more than short wavelengths. For gaps The wavelength should$

For edges Long wavelengths diffract more than short wavelengths. For gaps The wavelength should be the same size as the gap to get good diffraction. previous next

previous next

The aerial is on a pole to try and improve the reception of radio waves. previous next

previous next

$There is very little diffraction of short wavelength radio waves when they pass between$

There is very little diffraction of short wavelength radio waves when they pass between two hills previous next

$Long wavelength radio waves are more likely to be diffracted when they pass between$

Long wavelength radio waves are more likely to be diffracted when they pass between hills and are more likely to be detected by the aerial. previous next