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प्रश्न
Name one property of waves that do not change when the wave passes from one medium to another.
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उत्तर
The frequency of the waves does not change when the waves travel from one medium to another.
संबंधित प्रश्न
An enemy plane is at a distance of 300 km from a radar. In how much time the radar will be able to detect the plane? Take velocity of radio waves as 3 × 108 ms−1.
Name the factor that determines Quality of the note
In which units is the loudness of sound measured?
The quality of a sound depends on the amplitude of wave.
What determines the pitch of a sound?
The frequencies of notes given by flute, guitar and trumpet are respectively 400 Hz, 200 Hz and 500 Hz. Which one of these has the highest pitch?
Name the subjective property of light related to its wavelength.
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Two waves of the same pitch have their amplitudes in the ratio 2 : 3.
(i) What will be the ratio of their loudness?
(ii) What will be the ratio of their frequencies?
