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____________ is a phenomenon of assuming frequencies more than 20 kHz which is above the human audibility.

____________ is a phenomenon of assuming frequencies more than 20 kHz which is above the human audibility. Correct Answer Ultrasonics

The phenomenon which assumes frequencies more than 20 kHz. This frequency is above human audibility which corresponds to 6.1 to 2.3 *10-4 cm wavelength. Homogenization is a mechanical technique adopted widely to disrupt the cell wall and cell membrane. Freezing is nothing but a cold or psychrophilic shock. Alkali treatment is a chemical method for extraction of enzymes which uses a nucleophilic attack of basic radicals on the cell wall.

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Which of the following statements are correct? 1. A lowpass filter passes low frequencies and stops high frequencies. 2. A highpass filter passes high frequencies and rejects low frequencies 3. A bandpass filter passes frequencies within a frequency band and attenuates frequencies outside the band. 4. A bandstop filter passes frequencies within the band and blocks/attenuates frequencies outside a frequency band.
. . . . . . . . is a phenomenon of assuming frequencies more than 20 kHz which is above the human audibility.
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P, Q, R, Sand T are five crops that Babu grows. T is fast growing and more water demanding than R which gives more yield than T. P gives more yield than R and grows faster than Q. Q is more water demanding than T but is second lowest yielder, S is the slowest growing and least water demanding of all crops but gives highest yield. R is more water demanding and grows faster than P. Select the crop or crops that has/ have as many as crops that are more water demanding and as many as crops that give less yield than it.