Class 12 Exam > Class 12 Questions > According to Cartesian sign convention.a)Dist...
Start Learning for Free
According to Cartesian sign convention.
- a)Distances measured in the same direction as the incident light are taken as positive
- b)Distances measured in the same direction as the incident light are taken as negative
- c)Distances measured behind the pole direction are taken as positive
- d)None of the above
Correct answer is option 'A'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Most Upvoted Answer
According to Cartesian sign convention.a)Distances measured in the sam...
Cartesian sign convention is used in optics to determine the sign of distances, heights, and focal lengths of lenses and mirrors. This convention is based on the Cartesian coordinate system and has certain rules that need to be followed to determine the sign of different parameters.
The correct answer to the given question is option 'A', which states that distances measured in the same direction as the incident light are taken as positive. Let's understand this rule in more detail.
Rule of Cartesian Sign Convention
The Cartesian sign convention has the following rules:
1. The optical axis is taken as the reference axis, and distances are measured perpendicular to it.
2. The object is always placed on the left side of the lens or mirror, and the image is always formed on the right side.
3. Distances measured in the same direction as the incident light are taken as positive, and distances measured in the opposite direction are taken as negative.
4. Heights measured upwards from the optical axis are taken as positive, and heights measured downwards are taken as negative.
5. Focal length is positive for convex lenses and concave mirrors and negative for concave lenses and convex mirrors.
Explanation
According to the first rule of Cartesian sign convention, the optical axis is taken as the reference axis, and distances are measured perpendicular to it. In the case of a lens or mirror, the optical axis is the line passing through the center of curvature, the principal focus, and the optical center.
Now, when light rays pass through a lens or mirror, they travel in a straight line and may get refracted or reflected. The direction of incident light is taken as the reference direction, and distances measured in the same direction are taken as positive. For example, if an object is placed on the left side of a lens, and the image is formed on the right side, the distance of the object from the lens is taken as positive, and the distance of the image from the lens is also taken as positive.
Conclusion
In conclusion, Cartesian sign convention is an important concept in optics that helps in determining the sign of different parameters. The rule that distances measured in the same direction as the incident light are taken as positive is an important rule to remember while solving problems related to lenses and mirrors.
The correct answer to the given question is option 'A', which states that distances measured in the same direction as the incident light are taken as positive. Let's understand this rule in more detail.
Rule of Cartesian Sign Convention
The Cartesian sign convention has the following rules:
1. The optical axis is taken as the reference axis, and distances are measured perpendicular to it.
2. The object is always placed on the left side of the lens or mirror, and the image is always formed on the right side.
3. Distances measured in the same direction as the incident light are taken as positive, and distances measured in the opposite direction are taken as negative.
4. Heights measured upwards from the optical axis are taken as positive, and heights measured downwards are taken as negative.
5. Focal length is positive for convex lenses and concave mirrors and negative for concave lenses and convex mirrors.
Explanation
According to the first rule of Cartesian sign convention, the optical axis is taken as the reference axis, and distances are measured perpendicular to it. In the case of a lens or mirror, the optical axis is the line passing through the center of curvature, the principal focus, and the optical center.
Now, when light rays pass through a lens or mirror, they travel in a straight line and may get refracted or reflected. The direction of incident light is taken as the reference direction, and distances measured in the same direction are taken as positive. For example, if an object is placed on the left side of a lens, and the image is formed on the right side, the distance of the object from the lens is taken as positive, and the distance of the image from the lens is also taken as positive.
Conclusion
In conclusion, Cartesian sign convention is an important concept in optics that helps in determining the sign of different parameters. The rule that distances measured in the same direction as the incident light are taken as positive is an important rule to remember while solving problems related to lenses and mirrors.
Free Test
FREE
| Start Free Test |
Community Answer
According to Cartesian sign convention.a)Distances measured in the sam...
All the distance are measured from the optical centre. The distances measured in the direction of incident rays are positive and all the distances measured in the direction opposite to that of the incident rays are negative. Hence the correct answer is option A.
|
Explore Courses for Class 12 exam
|
|
Similar Class 12 Doubts
According to Cartesian sign convention.a)Distances measured in the same direction as the incident light are taken as positiveb)Distances measured in the same direction as the incident light are taken as negativec)Distances measured behind the pole direction are taken as positived)None of the aboveCorrect answer is option 'A'. Can you explain this answer?
Question Description
According to Cartesian sign convention.a)Distances measured in the same direction as the incident light are taken as positiveb)Distances measured in the same direction as the incident light are taken as negativec)Distances measured behind the pole direction are taken as positived)None of the aboveCorrect answer is option 'A'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about According to Cartesian sign convention.a)Distances measured in the same direction as the incident light are taken as positiveb)Distances measured in the same direction as the incident light are taken as negativec)Distances measured behind the pole direction are taken as positived)None of the aboveCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for According to Cartesian sign convention.a)Distances measured in the same direction as the incident light are taken as positiveb)Distances measured in the same direction as the incident light are taken as negativec)Distances measured behind the pole direction are taken as positived)None of the aboveCorrect answer is option 'A'. Can you explain this answer?.
According to Cartesian sign convention.a)Distances measured in the same direction as the incident light are taken as positiveb)Distances measured in the same direction as the incident light are taken as negativec)Distances measured behind the pole direction are taken as positived)None of the aboveCorrect answer is option 'A'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about According to Cartesian sign convention.a)Distances measured in the same direction as the incident light are taken as positiveb)Distances measured in the same direction as the incident light are taken as negativec)Distances measured behind the pole direction are taken as positived)None of the aboveCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for According to Cartesian sign convention.a)Distances measured in the same direction as the incident light are taken as positiveb)Distances measured in the same direction as the incident light are taken as negativec)Distances measured behind the pole direction are taken as positived)None of the aboveCorrect answer is option 'A'. Can you explain this answer?.
Solutions for According to Cartesian sign convention.a)Distances measured in the same direction as the incident light are taken as positiveb)Distances measured in the same direction as the incident light are taken as negativec)Distances measured behind the pole direction are taken as positived)None of the aboveCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 12.
Download more important topics, notes, lectures and mock test series for Class 12 Exam by signing up for free.
Here you can find the meaning of According to Cartesian sign convention.a)Distances measured in the same direction as the incident light are taken as positiveb)Distances measured in the same direction as the incident light are taken as negativec)Distances measured behind the pole direction are taken as positived)None of the aboveCorrect answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
According to Cartesian sign convention.a)Distances measured in the same direction as the incident light are taken as positiveb)Distances measured in the same direction as the incident light are taken as negativec)Distances measured behind the pole direction are taken as positived)None of the aboveCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for According to Cartesian sign convention.a)Distances measured in the same direction as the incident light are taken as positiveb)Distances measured in the same direction as the incident light are taken as negativec)Distances measured behind the pole direction are taken as positived)None of the aboveCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of According to Cartesian sign convention.a)Distances measured in the same direction as the incident light are taken as positiveb)Distances measured in the same direction as the incident light are taken as negativec)Distances measured behind the pole direction are taken as positived)None of the aboveCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice According to Cartesian sign convention.a)Distances measured in the same direction as the incident light are taken as positiveb)Distances measured in the same direction as the incident light are taken as negativec)Distances measured behind the pole direction are taken as positived)None of the aboveCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice Class 12 tests.
|
|
Explore Courses for Class 12 exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup