Question
Easy
Solving time: 3 mins
A beam of light converges at a point P. Now a lens is placed in the path of the convergent beam cm from P. At what point does the beam converge if the lens is (a) a convex lens of focal length cm, and (b) a concave lens of focal length cm?
Found 5 tutors discussing this question
Discuss this question LIVE
9 mins ago
Text solutionVerified
. According to the given case, object is virtual,
The focal length of the convex lens is .
Using lens equation,
. Now the focal length of the concave lens,
Was this solution helpful?
41
Share
Report
Filo tutor solutions (7)
Learn from their 1-to-1 discussion with Filo tutors.
11 mins
Uploaded on: 7/17/2023
Was this solution helpful?
89
Share
Report
6 mins
Uploaded on: 10/15/2023
Was this solution helpful?
121
Share
Report
One destination to cover all your homework and assignment needs
Learn Practice Revision Succeed
Instant 1:1 help, 24x7
60, 000+ Expert tutors
Textbook solutions
Big idea maths, McGraw-Hill Education etc
Essay review
Get expert feedback on your essay
Schedule classes
High dosage tutoring from Dedicated 3 experts
Practice more questions from Physics Part-II (NCERT)
Q1
Double-convex lenses are to be manufactured from a glass of refractive index 1.55, with both faces of the same radius of curvature. What is the radius of curvature required if the focal length is to be 20 cm?
Q2
A beam of light converges at a point P. Now a lens is placed in the path of the convergent beam cm from P. At what point does the beam converge if the lens is (a) a convex lens of focal length cm, and (b) a concave lens of focal length cm?
Q3
An object of size 3.0 cm is placed 14cm in front of a concave lens of focal length 21cm. Describe the image produced by the lens. What happens if the object is moved further away from the lens?
View allPractice questions from Physics Part-II (NCERT)
Question 1
Medium
Views: 6,074
Question 2
Medium
Views: 5,948
(b) If this telescope is used to view the moon, what is the diameter of the image of the moon formed by the objective lens? The diameter of the moon is , and the radius of lunar orbit is .
Question 3
Hard
Views: 6,534
Question 4
Easy
Views: 5,876
Practice more questions from Ray Optics and Optical Instruments
Question 1
Easy
Views: 5,326
Question 2
Easy
Views: 5,404
Practice questions on similar concepts asked by Filo students
Question 2
Views: 5,641
Question 4
Views: 5,426
Stuck on the question or explanation?
Connect with our Physics tutors online and get step by step solution of this question.
231 students are taking LIVE classes
Question Text | A beam of light converges at a point P. Now a lens is placed in the path of the convergent beam cm from P. At what point does the beam converge if the lens is (a) a convex lens of focal length cm, and (b) a concave lens of focal length cm? |
Updated On | Feb 10, 2024 |
Topic | Ray Optics and Optical Instruments |
Subject | Physics |
Class | Class 12 |
Answer Type | Text solution:1 Video solution: 7 |
Upvotes | 798 |
Avg. Video Duration | 7 min |