9394949438

[LATEST]$type=sticky$show=home$rm=0$va=0$count=4$va=0




RAY OPTICS AND OPTICAL INSTRUMENTS - 4

Dear Readers,

JEE Advanced Physics Syllabus can be referred by the IIT aspirants to get a detailed list of all topics that are important in cracking the entrance examination. JEE Advanced syllabus for Physics has been designed in such a way that it offers very practical and application-based learning to further make it easier for students to understand every concept or topic by correlating it with day-to-day experiences. In comparison to the other two subjects, the syllabus of JEE Advanced for physics is developed in such a way so as to test the deep understanding and application of concepts.

Q1. A plano-convex glass lens (μ_g=3/2) of radius of curvature R=10 cm is placed at a distance of ‘b’ from a concave lens of focal length 20 cm
  •  40 cm
  •  60 cm
  •  30 cm
  •  20 cm
Solution
Focal length of plano convex lens is 1/f=(3/2-1)(1/10-1/∞)or f=20 cm If point object O is placed at a distance of 20 cm from the plano-convex lens, rays become parallel and final image is formed at second focus or 20 cm from concave lens which is independent of b
Q2.A thin equiconvex lens (μ=3/2) of focal length 10 cm is cut and separated and a material of refractive index 3 is filled between them. What is the focal length of the combination?

  •  -10 cm
  •  -10/4 cm
  •  -10/3 cm
  •  None of these
Solution

Q3.  A concave mirror of focal length 10 cm and a convex mirror of focal length 15 cm are placed facing each other 40 cm apart. A point object is placed between the mirrors, on their common axis and 15 cm from the concave mirror. Find the position and nature of the image produced by successive reflections, first at the concave mirror and then at the convex mirror
  •   12 cm behind convex mirror, real
  •  9 cm behind convex mirror, real
  •  6 cm behind convex mirror, virtual
  •  3 cm behind convex mirror, virtual
Solution

Q4. A cubical block of glass, refractive index 1.5, has a spherical cavity of radius r=9 cm inside it as shown in figure. A luminous point object O is at a distance of 18 cm from the cube (see figure). What is the apparent position of O as seen from A?
  •  Î¼>3/4
  •  Î¼ less than (3√3)/4
  •  Î¼>√3
  •  Î¼ less than √3/2
Solution

Q5. An object is approaching a fixed plane mirror with velocity 5 ms^(-1) making an angle of 45° with the normal. The speed of image w.r.t. the mirror is
  •  5 ms^(-1)
  •  5/√2 ms^(-1)
  •  5√2 ms^(-1)
  •  10 ms^(-1)
Solution

Q6. Behind a thin converging lens having both the surfaces of the same radius 1 cm, a plane mirror has been placed. The image of an object at a distance of 40 cm from the lens is formed at the same position. What is the refractive index of the lens?
  •  1.5
  •  5/3
  • 9/8
  •  None of these
Solution


Q7.In an experiment to determine the focal length (f) of a concave mirror by the u-v method, a student places the object pin Aon the principle axis at a distance x from the pole P. The student looks at the pin and its inverted image from a distance keeping his/her eye in line with PA. When the student shifts his/her eye towards left, the image appears to the right of the object pin. Then
  •  x less than f
  •  f less than x less than 2f
  •  x=2f
  •  x>2f
Solution


Q8.A ray of light is incident on a medium with angle of incidence i and refracted into a second medium with angle of refraction r. The graph of sin⁡〖(i)〗 vs sin⁡〖(r)〗 is as shown in figure. Then, the velocity of light in the first medium in n times the velocity of light in the second medium. What should be the value of n?
  •  √3
  •  T1/√3
  •  √3/2
  •  2/√3
Solution

From Snell’s law, μ_1 sin⁡i=μ_2 sin⁡r ⇒μ_2/m_1 =sin⁡i/sin⁡r From the graph, tan⁡〖60°〗=sin⁡i/sin⁡r ⇒sin⁡i/sin⁡r =√3=μ_2/μ_1 μ=c/v⇒ =μ_1/μ_2 =v_2/v_1 v_1=(μ_2/μ_1 ) v_2 ⇒v_1=√3 v_2

Q9.A candle placed 20 cm from the surface of a convex mirror and a plane mirror is also placed so that the virtual images in the two mirrors coincide. If the plane mirror is 12 cm away from the object, what is the focal length of the convex mirror?
  •  20 cm
  •  15 cm
  •  10 cm
  •  5 cm
Solution


For convex mirror, u+v=12×2=24 cm (because for plane mirror, distance of object=distance of image). Also, here for the convex mirror u=20 cm, therefore v=4 cm. Hence, using 1/v+1/u=1/f We find f=5 cm
Q10. The given lens is broken into four parts rearranged as shown. If the initial focal length is f, then after rearrangement the equivalent focal length is
  •  4.5 ms^(-1)
  •  5.4 ms^(-1)
  •  3.0 ms^(-1)
  • 3.4 ms^(-1)
Solution

author image

Written by: AUTHORNAME

AUTHORDESCRIPTION

Want to know more

Please fill in the details below:

INNER POST ADS

Latest IITJEE Articles$type=three$c=3$author=hide$comment=hide$rm=hide$date=hide$snippet=hide

Latest NEET Articles$type=three$c=3$author=hide$comment=hide$rm=hide$date=hide$snippet=hide

Name

Admissions,1,Alternating Current,60,AP EAMCET 2020,1,Basic Maths,2,BCECE 2020,1,best books for iit jee,2,best coaching institute for iit,1,best coaching institute for iit jee preparation,1,best iit jee coaching delhi,1,best iit jee coaching in delhi,2,best study material for iit jee,4,BITSAT Registration 2020,1,Blog,62,books for jee preparation,1,books recommended by iit toppers,3,Capacitance,3,CBSE,1,CBSE accounts exam,1,CBSE boards,1,CBSE NEET,9,cbse neet 2019,3,CBSE NEET 2020,1,cbse neet nic,1,Centre of Mass,2,Chemistry,58,Class 12 Physics,15,coaching for jee advanced,1,coaching institute for iit jee,2,Collision,2,COMEDK UGET 2020 Application Form,1,COMEDK UGET 2020 Exam Form,1,COMEDK UGET news,1,CUCET 2020,2,Current Electricity,4,CVR college,1,Digestion and Absorption Notes PDF,1,Electromagnetic Induction,3,Electronics,1,Electrostatics,3,Energy,1,Engineering & Medical,1,Fluid Mechanics,4,Gravitation,2,GUJCET 2020 Application Form,1,Heat,4,iit admission,1,iit advanced,1,iit coaching centre,3,iit coaching centre in delhi,2,iit coaching classes,2,iit coaching in delhi,1,iit coaching institute in delhi,1,iit entrance exam,1,iit entrance exam syllabus,2,iit exam pattern,2,iit jee,5,iit jee 2019,3,iit jee advanced,2,iit jee books,3,iit jee coaching,2,iit jee exam,3,iit jee exam 2019,1,iit jee exam pattern,3,iit jee institute,1,iit jee main 2019,2,iit jee mains,3,iit jee mains syllabus,2,iit jee material,1,iit jee online test,3,iit jee practice test,3,iit jee preparation,6,iit jee preparation in delhi,2,iit jee preparation time,1,iit jee preparation tips by toppers,2,iit jee question paper,1,iit jee study material,3,iit jee study materials,2,iit jee syllabus,2,iit jee syllabus 2019,2,iit jee test,3,iit preparation,2,iit preparation books,5,iit preparation time table,2,iit preparation tips,2,iit syllabus,2,iit test series,3,IITJEE,100,Important Biology Notes for NEET Preparation,1,IPU CET,1,JEE Advanced,83,jee advanced exam,2,jee advanced exam pattern,1,jee advanced paper,1,JEE Books,1,JEE Coaching Delhi,3,jee exam,3,jee exam 2019,6,JEE Exam Pattern,2,jee exam pattern 2019,1,jee exam preparation,1,JEE Main,85,jee main 2019,4,JEE Main 2020,1,JEE Main 2020 Application Form,2,JEE Main 2020 news,2,JEE Main 2020 Official Answer Key,1,JEE Main 2020 Registration,1,JEE Main 2020 Score,1,JEE Main application form,1,jee main coaching,1,JEE Main eligibility criteria,3,jee main exam,1,jee main exam 2019,3,jee main online question paper,1,jee main online test,3,JEE Main Paper-2 Result,1,jee main registration,2,jee main syllabus,2,JEE mains 2020,1,jee mains question bank,1,jee mains test papers,3,JEE Mock Test,2,jee notes,1,jee past papers,1,JEE Preparation,2,jee preparation in delhi,1,jee preparation material,4,JEE Study Material,1,jee syllabus,6,JEE Syllabus Chemistry,1,JEE Syllabus Maths,1,JEE Syllabus Physics,1,jee test series,3,KCET - 2020,1,Kinematics,1,Latest article,5,Latest Articles,61,Latest News,34,latest news about neet exam,1,Laws of Motion,2,Magnetic Effect of Current,3,Magnetism,3,MHT CET 2020,2,MHT CET 2020 exam schedule,1,Modern Physics,1,NCERT Solutions,15,neet,3,neet 2019,1,neet 2019 eligibility criteria,1,neet 2019 exam date,2,neet 2019 test series,2,NEET 2020,2,NEET 2020 Application Form,1,NEET 2020 Eligibility Criteria,1,NEET 2020 Registration,1,neet application form,1,neet application form 2019 last date,1,Neet Biology Syllabus,1,Neet Books,3,neet eligibility criteria,3,neet exam 2019,7,neet exam application,1,neet exam date,1,neet exam details,1,neet exam pattern,6,neet exam pattern 2019,2,neet examination,1,neet mock test 2019,1,Neet Notes,3,Neet Online Application Form,3,neet online test,2,neet past papers,1,neet physics syllabus,1,neet practice test,2,NEET preparation books,1,neet qualification marks,1,NEET question paper 2019,1,neet question papers,1,neet registration,1,Neet Study Material,3,neet syllabus,6,neet syllabus 2019,5,NEET Syllabus 2020,1,neet syllabus chemistry,1,neet syllabus for biology,1,neet syllabus for physics,1,neet test series,1,neet ug 2019,2,news,5,online study material for iit jee,1,Optical Instruments,1,Physics,110,physics books for iit jee,1,Power,1,Practical Physics,1,Quiz,5,Ray Optics,1,Rotational Motion,3,SHM,3,Simple Harmonic Motion,3,study materials for iit jee,1,Study Notes,110,study notes for iit jee,1,Thermodynamics,4,TS EAMCET Notification,2,Units and Dimensions,1,UPSEE 2020,1,UPSEE 2020 Application Form,2,UPSEE EXAM,1,Vectors,2,VITEE Application form,1,Wave Motion,3,Wave Optics,1,WBJEE 2020 Admit Card,1,WBJEE 2020 Answer Key,1,Work,1,
ltr
item
BEST NEET COACHING CENTER | BEST IIT JEE COACHING INSTITUTE | BEST NEET & IIT JEE COACHING: Ray Optics and Optical Instruments-Quiz-4
Ray Optics and Optical Instruments-Quiz-4
https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjUbEZmiUc-YCCKsBNfFTdAFahSeGO822ZT4dv1u_PYwiPx5kmStDITwtlNRicnrc2snsMUTfYDfUlLYgArPx9z2mDj1hUyq-9dN8VSfqpjEr7wQcgUEknE5A2rVIbEFp_gjFCw4jTEcf8/s600/Quiz+Image+20+%25281%2529.jpg
https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjUbEZmiUc-YCCKsBNfFTdAFahSeGO822ZT4dv1u_PYwiPx5kmStDITwtlNRicnrc2snsMUTfYDfUlLYgArPx9z2mDj1hUyq-9dN8VSfqpjEr7wQcgUEknE5A2rVIbEFp_gjFCw4jTEcf8/s72-c/Quiz+Image+20+%25281%2529.jpg
BEST NEET COACHING CENTER | BEST IIT JEE COACHING INSTITUTE | BEST NEET & IIT JEE COACHING
https://www.cleariitmedical.com/2021/07/ray-optics-and-optical-instruments-quiz_5.html
https://www.cleariitmedical.com/
https://www.cleariitmedical.com/
https://www.cleariitmedical.com/2021/07/ray-optics-and-optical-instruments-quiz_5.html
true
7783647550433378923
UTF-8
Loaded All Posts Not found any posts VIEW ALL Readmore Reply Cancel reply Delete By Home PAGES POSTS View All RECOMMENDED FOR YOU LABEL ARCHIVE SEARCH ALL POSTS Not found any post match with your request Back Home Sunday Monday Tuesday Wednesday Thursday Friday Saturday Sun Mon Tue Wed Thu Fri Sat January February March April May June July August September October November December Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec just now 1 minute ago $$1$$ minutes ago 1 hour ago $$1$$ hours ago Yesterday $$1$$ days ago $$1$$ weeks ago more than 5 weeks ago Followers Follow THIS CONTENT IS PREMIUM Please share to unlock Copy All Code Select All Code All codes were copied to your clipboard Can not copy the codes / texts, please press [CTRL]+[C] (or CMD+C with Mac) to copy

STAY CONNECTED