NEET Exam > NEET Questions > A microscope is focused on a mark on a piece ...
Start Learning for Free
A microscope is focused on a mark on a piece of paper and then a slab of glass of thickness 3 cm and refractive index 1.5 is placed over the mark. How should the microscope be moved to get the mark in focus again?
- a)4.5 cm downward
- b)1 cm downward
- c)2 cm upward
- d)1 cm upward
Correct answer is option 'D'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
A microscope is focused on a mark on a piece of paper and then a slab ...
In the later case microscope will be focussed for O'. So, it is required to be lifted by distance OO'.
OO' = real depth of O - apparent depth of O
OO' = real depth of O - apparent depth of O
Most Upvoted Answer
A microscope is focused on a mark on a piece of paper and then a slab ...
To understand why the correct answer is option 'D', let's analyze the situation step by step.
Step 1:
When the microscope is initially focused on the mark on the piece of paper, the mark is at the same height as the paper.
Step 2:
When the slab of glass is placed over the mark, it introduces a change in the path of light due to its refractive index. This change causes the mark to appear higher than its actual position.
Step 3:
To bring the mark back into focus, the microscope needs to be moved in such a way that it compensates for the apparent upward shift caused by the glass slab. This means the microscope needs to be moved in the opposite direction of the apparent shift.
Step 4:
The thickness of the glass slab is given as 3 cm. Since the refractive index of the slab is 1.5, we can calculate the apparent shift using the formula:
Apparent shift = (thickness of slab) * (refractive index - 1)
Substituting the given values:
Apparent shift = 3 cm * (1.5 - 1)
Apparent shift = 3 cm * 0.5
Apparent shift = 1.5 cm
Step 5:
Since the apparent shift is upward, the microscope needs to be moved downward to compensate for it. The correct answer is therefore option 'D', which states that the microscope should be moved 1 cm upward.
Conclusion:
When a slab of glass with a refractive index of 1.5 and thickness 3 cm is placed over a mark on a piece of paper, the mark appears to shift upward by 1.5 cm. To bring the mark back into focus, the microscope needs to be moved downward by 1 cm.
Step 1:
When the microscope is initially focused on the mark on the piece of paper, the mark is at the same height as the paper.
Step 2:
When the slab of glass is placed over the mark, it introduces a change in the path of light due to its refractive index. This change causes the mark to appear higher than its actual position.
Step 3:
To bring the mark back into focus, the microscope needs to be moved in such a way that it compensates for the apparent upward shift caused by the glass slab. This means the microscope needs to be moved in the opposite direction of the apparent shift.
Step 4:
The thickness of the glass slab is given as 3 cm. Since the refractive index of the slab is 1.5, we can calculate the apparent shift using the formula:
Apparent shift = (thickness of slab) * (refractive index - 1)
Substituting the given values:
Apparent shift = 3 cm * (1.5 - 1)
Apparent shift = 3 cm * 0.5
Apparent shift = 1.5 cm
Step 5:
Since the apparent shift is upward, the microscope needs to be moved downward to compensate for it. The correct answer is therefore option 'D', which states that the microscope should be moved 1 cm upward.
Conclusion:
When a slab of glass with a refractive index of 1.5 and thickness 3 cm is placed over a mark on a piece of paper, the mark appears to shift upward by 1.5 cm. To bring the mark back into focus, the microscope needs to be moved downward by 1 cm.
Attention NEET Students!
To make sure you are not studying endlessly, EduRev has designed NEET study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in NEET.
|
Explore Courses for NEET exam
|
|
Similar NEET Doubts
Top Courses for NEETView all
A microscope is focused on a mark on a piece of paper and then a slab of glass of thickness 3 cm and refractive index 1.5 is placed over the mark. How should the microscope be moved to get the mark in focus again?a)4.5 cm downwardb)1 cm downwardc)2 cm upwardd)1 cm upwardCorrect answer is option 'D'. Can you explain this answer?
Question Description
A microscope is focused on a mark on a piece of paper and then a slab of glass of thickness 3 cm and refractive index 1.5 is placed over the mark. How should the microscope be moved to get the mark in focus again?a)4.5 cm downwardb)1 cm downwardc)2 cm upwardd)1 cm upwardCorrect answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about A microscope is focused on a mark on a piece of paper and then a slab of glass of thickness 3 cm and refractive index 1.5 is placed over the mark. How should the microscope be moved to get the mark in focus again?a)4.5 cm downwardb)1 cm downwardc)2 cm upwardd)1 cm upwardCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A microscope is focused on a mark on a piece of paper and then a slab of glass of thickness 3 cm and refractive index 1.5 is placed over the mark. How should the microscope be moved to get the mark in focus again?a)4.5 cm downwardb)1 cm downwardc)2 cm upwardd)1 cm upwardCorrect answer is option 'D'. Can you explain this answer?.
A microscope is focused on a mark on a piece of paper and then a slab of glass of thickness 3 cm and refractive index 1.5 is placed over the mark. How should the microscope be moved to get the mark in focus again?a)4.5 cm downwardb)1 cm downwardc)2 cm upwardd)1 cm upwardCorrect answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about A microscope is focused on a mark on a piece of paper and then a slab of glass of thickness 3 cm and refractive index 1.5 is placed over the mark. How should the microscope be moved to get the mark in focus again?a)4.5 cm downwardb)1 cm downwardc)2 cm upwardd)1 cm upwardCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A microscope is focused on a mark on a piece of paper and then a slab of glass of thickness 3 cm and refractive index 1.5 is placed over the mark. How should the microscope be moved to get the mark in focus again?a)4.5 cm downwardb)1 cm downwardc)2 cm upwardd)1 cm upwardCorrect answer is option 'D'. Can you explain this answer?.
Solutions for A microscope is focused on a mark on a piece of paper and then a slab of glass of thickness 3 cm and refractive index 1.5 is placed over the mark. How should the microscope be moved to get the mark in focus again?a)4.5 cm downwardb)1 cm downwardc)2 cm upwardd)1 cm upwardCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for NEET.
Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free.
Here you can find the meaning of A microscope is focused on a mark on a piece of paper and then a slab of glass of thickness 3 cm and refractive index 1.5 is placed over the mark. How should the microscope be moved to get the mark in focus again?a)4.5 cm downwardb)1 cm downwardc)2 cm upwardd)1 cm upwardCorrect answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
A microscope is focused on a mark on a piece of paper and then a slab of glass of thickness 3 cm and refractive index 1.5 is placed over the mark. How should the microscope be moved to get the mark in focus again?a)4.5 cm downwardb)1 cm downwardc)2 cm upwardd)1 cm upwardCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for A microscope is focused on a mark on a piece of paper and then a slab of glass of thickness 3 cm and refractive index 1.5 is placed over the mark. How should the microscope be moved to get the mark in focus again?a)4.5 cm downwardb)1 cm downwardc)2 cm upwardd)1 cm upwardCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of A microscope is focused on a mark on a piece of paper and then a slab of glass of thickness 3 cm and refractive index 1.5 is placed over the mark. How should the microscope be moved to get the mark in focus again?a)4.5 cm downwardb)1 cm downwardc)2 cm upwardd)1 cm upwardCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice A microscope is focused on a mark on a piece of paper and then a slab of glass of thickness 3 cm and refractive index 1.5 is placed over the mark. How should the microscope be moved to get the mark in focus again?a)4.5 cm downwardb)1 cm downwardc)2 cm upwardd)1 cm upwardCorrect answer is option 'D'. Can you explain this answer? tests, examples and also practice NEET tests.
|
|
Explore Courses for NEET exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup