Whether the following statements about lenses are true or false and mark them.

Question

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Answer 1

Question

Chapter 41, Problem 1PLA

To determine

Whether the following statements about lenses are true or false and mark them.

Expert Solution & Answer

Answer to Problem 1PLA

Statement a: False

Statement b: False

Statement c: False

Statement d: False

Explanation of Solution

There are mainly two types of lens, converging lens and diverging lens.

The rays brought together to a point called focal length when a light beam of parallel rays incident on a converging lens. The focal point of the converging lens is always positive.

The rays diverges when a light beam of parallel rays incident on a diverging lens. The focal point of the diverging lens is always negative.

Conclusion:

(a) The parallel rays converge upon incident on a converging lens and its focal point is positive. Thus, statement (a) is false.
(b) When the path of the diverging light rays is traced backwards, they appear to come from a point called focal point. Thus, statement (b) is false.
(c) A double convex lens does not have a negative focal length. Thus, statement (c) is false.
(d) The focal point of the converging lens is always positive and the focal point of the diverging lens is always negative. Therefore, statement (d) is false.

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I. Pushing on a File Cabinet Bob has been asked to push a heavy file cabinet down the hall to another office. It's not on rollers, so there is a lot of friction. At time t = 0 seconds, he starts pushing it from rest with increasing force until it starts to move at t = 2 seconds. He pushes the file cabinet down the hall with varying amounts of force. The velocity versus time graph of the cabinet is shown below. A. On the graphs provided below, 1. draw the net force vs. time that would produce this velocity graph; 2. draw the friction force vs. time for this motion; 3. draw the applied force (Fon Cabinet by Bob) VS. time for this motion (the first two seconds of this graph have been drawn for you). Velocity (m/s) Applied Force (N) Friction Force (N) Net Force (N) A -m B -U time (s) D time (s) time (s) time (s)

answer it

Please draw a sketch and a FBD

Answer 2

Question

Chapter 41, Problem 1PLA

To determine

Whether the following statements about lenses are true or false and mark them.

Expert Solution & Answer

Answer to Problem 1PLA

Statement a: False

Statement b: False

Statement c: False

Statement d: False

Explanation of Solution

There are mainly two types of lens, converging lens and diverging lens.

The rays brought together to a point called focal length when a light beam of parallel rays incident on a converging lens. The focal point of the converging lens is always positive.

The rays diverges when a light beam of parallel rays incident on a diverging lens. The focal point of the diverging lens is always negative.

Conclusion:

(a) The parallel rays converge upon incident on a converging lens and its focal point is positive. Thus, statement (a) is false.
(b) When the path of the diverging light rays is traced backwards, they appear to come from a point called focal point. Thus, statement (b) is false.
(c) A double convex lens does not have a negative focal length. Thus, statement (c) is false.
(d) The focal point of the converging lens is always positive and the focal point of the diverging lens is always negative. Therefore, statement (d) is false.

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Answer 3

Question

Chapter 41, Problem 1PLA

To determine

Whether the following statements about lenses are true or false and mark them.

Expert Solution & Answer

Answer to Problem 1PLA

Statement a: False

Statement b: False

Statement c: False

Statement d: False

Explanation of Solution

There are mainly two types of lens, converging lens and diverging lens.

The rays brought together to a point called focal length when a light beam of parallel rays incident on a converging lens. The focal point of the converging lens is always positive.

The rays diverges when a light beam of parallel rays incident on a diverging lens. The focal point of the diverging lens is always negative.

Conclusion:

(a) The parallel rays converge upon incident on a converging lens and its focal point is positive. Thus, statement (a) is false.
(b) When the path of the diverging light rays is traced backwards, they appear to come from a point called focal point. Thus, statement (b) is false.
(c) A double convex lens does not have a negative focal length. Thus, statement (c) is false.
(d) The focal point of the converging lens is always positive and the focal point of the diverging lens is always negative. Therefore, statement (d) is false.

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Answer 4

Question

Chapter 41, Problem 1PLA

To determine

Whether the following statements about lenses are true or false and mark them.

Expert Solution & Answer

Answer to Problem 1PLA

Statement a: False

Statement b: False

Statement c: False

Statement d: False

Explanation of Solution

There are mainly two types of lens, converging lens and diverging lens.

The rays brought together to a point called focal length when a light beam of parallel rays incident on a converging lens. The focal point of the converging lens is always positive.

The rays diverges when a light beam of parallel rays incident on a diverging lens. The focal point of the diverging lens is always negative.

Conclusion:

(a) The parallel rays converge upon incident on a converging lens and its focal point is positive. Thus, statement (a) is false.
(b) When the path of the diverging light rays is traced backwards, they appear to come from a point called focal point. Thus, statement (b) is false.
(c) A double convex lens does not have a negative focal length. Thus, statement (c) is false.
(d) The focal point of the converging lens is always positive and the focal point of the diverging lens is always negative. Therefore, statement (d) is false.

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Answer 5

Chapter 41, Problem 1PLA

To determine

Whether the following statements about lenses are true or false and mark them.

Expert Solution & Answer

Answer to Problem 1PLA

Statement a: False

Statement b: False

Statement c: False

Statement d: False

Explanation of Solution

There are mainly two types of lens, converging lens and diverging lens.

The rays brought together to a point called focal length when a light beam of parallel rays incident on a converging lens. The focal point of the converging lens is always positive.

The rays diverges when a light beam of parallel rays incident on a diverging lens. The focal point of the diverging lens is always negative.

Conclusion:

(a) The parallel rays converge upon incident on a converging lens and its focal point is positive. Thus, statement (a) is false.
(b) When the path of the diverging light rays is traced backwards, they appear to come from a point called focal point. Thus, statement (b) is false.
(c) A double convex lens does not have a negative focal length. Thus, statement (c) is false.
(d) The focal point of the converging lens is always positive and the focal point of the diverging lens is always negative. Therefore, statement (d) is false.

Answer 6

Chapter 41, Problem 1PLA

To determine

Whether the following statements about lenses are true or false and mark them.

Expert Solution & Answer

Answer to Problem 1PLA

Statement a: False

Statement b: False

Statement c: False

Statement d: False

Explanation of Solution

There are mainly two types of lens, converging lens and diverging lens.

The rays brought together to a point called focal length when a light beam of parallel rays incident on a converging lens. The focal point of the converging lens is always positive.

The rays diverges when a light beam of parallel rays incident on a diverging lens. The focal point of the diverging lens is always negative.

Conclusion:

(a) The parallel rays converge upon incident on a converging lens and its focal point is positive. Thus, statement (a) is false.
(b) When the path of the diverging light rays is traced backwards, they appear to come from a point called focal point. Thus, statement (b) is false.
(c) A double convex lens does not have a negative focal length. Thus, statement (c) is false.
(d) The focal point of the converging lens is always positive and the focal point of the diverging lens is always negative. Therefore, statement (d) is false.

Answer 7

Chapter 41, Problem 1PLA

To determine

Whether the following statements about lenses are true or false and mark them.

Answer 8

Expert Solution & Answer

Answer to Problem 1PLA

Statement a: False

Statement b: False

Statement c: False

Statement d: False

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Explanation of Solution

There are mainly two types of lens, converging lens and diverging lens.

The rays brought together to a point called focal length when a light beam of parallel rays incident on a converging lens. The focal point of the converging lens is always positive.

The rays diverges when a light beam of parallel rays incident on a diverging lens. The focal point of the diverging lens is always negative.

Conclusion:

(a) The parallel rays converge upon incident on a converging lens and its focal point is positive. Thus, statement (a) is false.
(b) When the path of the diverging light rays is traced backwards, they appear to come from a point called focal point. Thus, statement (b) is false.
(c) A double convex lens does not have a negative focal length. Thus, statement (c) is false.
(d) The focal point of the converging lens is always positive and the focal point of the diverging lens is always negative. Therefore, statement (d) is false.