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tamaranim1 [39]
3 years ago
13

An arthroscope can be inserted into a knee joint through a very tiny incision to help a doctor examine the knee. A light is tran

smitted through the scope to illuminate the joint.
What type of light technology is being described?
Physics
2 answers:
jasenka [17]3 years ago
8 0

Answer:

Total Internal Reflection

Explanation:

An arthroscope is an optical fiber which is used to examine knee by doctor. Light is transmitted through this scope using the phenomenon of Total internal reflection of light. When light is incident upon an interface of denser to rarer medium at a certain angle (which is greater than the critical angle), it undergoes total internal reflection within it. In this way, light is transmitted through thin optical fibers and can be used for various purposes.

natali 33 [55]3 years ago
4 0

Sample Response: The technology being described is fiber optics. Since they are small and flexible, they enable doctors to see areas that they might otherwise be unable to see without surgery.

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Answer:

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Explanation:

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3 0
3 years ago
On a balanced seesaw, a boy three times as heavy as his partner sits
slega [8]

Answer:

1/3 the distance from the fulcrum

Explanation:

On a balanced seesaw, the torques around the fulcrum calculated on one side and on another side must be equal. This means that:

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where

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d2 is the distance of the partner from the fulcrum

In this problem, we know that the boy is three times as heavy as his partner, so

W_1 = 3 W_2

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(3 W_2) d_1 = W_2 d_2

and by simplifying:

3 d_1 = d_2\\d_1 = \frac{1}{3}d_2

which means that the boy sits at 1/3 the distance from the fulcrum.

8 0
4 years ago
With your hand parallel to the floor and your palm upright, you lower a 3-kg book downward. If the force exerted on the book by
lara31 [8.8K]

According to the net force, the acceleration of the book is 16.47 m/s².

We need to know about force to solve this problem. According to second Newton's Law, the force applied to an object will be proportional to mass and acceleration. Hence, it can be written as

∑F = m . a

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From the question above, we know that

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Find more on force at: brainly.com/question/25239010

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