Question : Endoscope is an instrument used to detect the ulcers in the stomach has a long narrow tube (with a small glowing bulb at one end) which is inserted in to the stomach through the mouth contains.
Option 1: small current carrying wire
Option 2: a narrow tube containing water
Option 3: optical fibre
Option 4: a narrow tube containing some chemical solution
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Correct Answer: optical fibre
Solution : The correct answer is optical fibre.
Endoscope is a medical device which contains a image sensor, a small bulb, an optical lens which are attached through a long thin optical fibre. It helps the doctor to investigate problems like ulcers and look deeper into the patient body. In newer technology simple surgical processes are also conducted through it like tumor is lungs and stomach.
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