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D- Ultrasonic wave Heating
These waves are different from electromagnetic waves . It produces mechanical vibration inside tissue. It is the same as the sound waves but it has much higher frequencies about I MHz with power of several watts per centimeter. It can move the tissue particles backward and forward with high frequency, in doing so it can increase the kinetic energy consequently it heats the tissue.
Ultrasound can be produced by special transducers placed in direct contact with the skin. It is used for relieving tightness and scarring occurring in jointdisease. It can dispose more heat in bones, as bones are better absorber for ultrasonic energy than soft tissue. It is also used in deep therapy.
In Rutherford's experiment including the deflection of alpha particles by atomic nuclei, the fact that some of the alpha particles bombarding the thin gold foil were back-scattered
What''s the main idea of the topic fluid mecanic???
Calculate mass of an electron accelerated to kinetic energy of 2 M eV.
A current of 12A flows in the element of an electric fire of resistance 25?. Verify the power dissipated by the element. If the ?re is on for 5 hours every day, measure for a
Action and reaction in polling forces Secure two spring balances. Make a loop in every end of a short piece of strong cord. Join a spring balance to each end and have two pupil
What is a light Guide? While a number of single fibers are grouped together to create a larger diameter light conductor the resulting structure is termed as a light guide. Occa
when a billard ball hits another billarid ball then other ball is maving but striking ball also move some distance why
Marine Application:- Suitably designed one or double speed squirrel cage induction motors are used.
is there any Law of Physics acting in a weighted object placed in a corrugated paper and the paper can actually support it well thanky you :)
Time Base Control 2 Shows the effect of modifying the time base control on the show while there is an input voltage varying in time.
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