A medical instrument endoscope works on the principle of

Asked by admin @ 23/08/2021 in Physics viewed by 274 People

What is endoscopy? which principle in optics is made use of in endoscopy?

Answered by admin @ 23/08/2021

The
meaning of Endoscopy is to look inside. It refers to the procedure of looking
inside the body with and endoscope for medical reasons. It is an instrument
used to examine the interior of a hollow organ or cavity of the body. Mostly
the term endoscopy refers to an examination of the upper part of the gastrointestinal
tract.

Unlike other
medical imaging techniques, endoscopes are inserted directly into the organ. The
principle of total internal reflection is used in the endoscope by using the optical
fibres. One of the
two main cables of the endoscope carry light from a bright lamp into the body.
This illuminates the cavity where the endoscope has been inserted. The light
bounces along the walls of the cable into the patient's body cavity.

A hair dryer with a resistance of 9.6 ohms operates at 120 volts for 2.5 minutes. the total electrical energy used by the dryer during this time interval is

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Asked by admin @ 23/08/2021 in Physics viewed by 1143 persons

A thief runs at a speed of 10m s

Asked by admin @ 23/08/2021 in Physics viewed by 1095 persons

The african cicada is the world's loudest insect, producing a sound intensity level of 107 db at a distance of 0.50 m. what is the intensity of its sound (in w/m2) as heard by someone standing 3.1 m away? express your answer in watts per meter squared.

Asked by maham237 @ 10/01/2021 in Physics viewed by 1095 persons

A 5.8 x 10 4 watt elevator motor can lift

Asked by maham237 @ 20/06/2021 in Physics viewed by 1080 persons

A medical instrument endoscope works on the principle of

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