Find the best tutors and institutes for Class 10 Tuition
Learn Refraction by spherical lenses
Welcome to the fascinating world of optics! In the CBSE Class 10 Science chapter "Light – Reflection and Refraction," one of the most critical concepts you will explore is refraction by spherical lenses. Have you ever wondered how a magnifying glass makes letters appear larger or how spectacles help correct a person's vision? This amazing phenomenon happens because of refraction—the bending of light as it passes from one transparent medium, like air, into another medium of a different density, like glass. Spherical lenses are essentially solid pieces of transparent material bound by two surfaces, where at least one of these surfaces is spherically curved.
To master this concept, you must understand the two primary types of spherical lenses and the core mathematical logic governing them. A convex lens is thicker at its center and tapers at the edges, designed to converge incoming light rays. Conversely, a concave lens is thinner at the center and thicker at the edges, causing incoming light rays to diverge or spread outward. The core logic of image formation relies on the Lens Formula, mathematically expressed as 1/f = 1/v - 1/u. In this formula, u represents the object distance, v is the image distance, and f is the focal length. The exact point on the principal axis where parallel light rays perfectly converge (or appear to diverge from) is called the principal focus (F), while the geometric center of the lens is known as its optical centre (O).
Take a close look at the detailed optical diagram above, which provides a clear, step-by-step visual of how light behaves when interacting with both types of lenses. On the left side, you observe parallel incoming light rays (in orange) hitting the boundary of the convex lens. Notice how the lens bends these green refracted rays inward until they all intersect perfectly at a single point on the right side—this real meeting point is the principal focus (F). On the right side of the diagram, the concave lens acts entirely differently. When parallel orange rays strike it, the green refracted rays are pushed outward, spreading away from each other. Because these rays never physically meet, we mathematically trace them backward using dotted lines to find where they appear to originate. This creates a "Virtual Focus" located on the same side as the incoming light. Understanding these ray paths is absolutely essential because your CBSE Class 10 board exams will frequently test your ability to independently draw accurate ray diagrams to predict the nature, position, and relative size of an image.
Grasping the intricate rules of ray diagrams, mastering cartesian sign conventions, and calculating numerical problems using the lens formula can sometimes feel overwhelming for students. If you find yourself struggling to understand the mathematics behind refraction, seeking the right guidance can elevate your confidence and your scores. Search on UrbanPro to connect with highly experienced, verified Class 10 Science tutors who specialize in simplifying complex physics concepts. Whether you are looking for interactive one-on-one online sessions or prefer local offline tuition in your area, UrbanPro is the ultimate platform to find dedicated educators who will help you completely master your CBSE Science curriculum!
Other Concepts in Light – Reflection and Refraction
- Image formation by lenses
- Image formation by spherical mirrors
- Lens formula and magnification
- Power of a lens
- Reflection of light by curved mirrors
- Refraction of light through a glass slab
Other Concept Videos for Refraction by spherical lenses
Through the Lens
CBSE - Class 10>Science>Light – Reflection and Refraction>Refraction by spherical lenses
Focused Light
CBSE - Class 10>Science>Light – Reflection and Refraction>Refraction by spherical lenses
Top Tutors who teach Refraction by spherical lenses
Super Tutor 
Badarpur, Delhi 
138 students 
3384 hrs of classes completed 
200 per hour 
Online Classes 
Tutor's home
The best teacher in the world for me. H motivates me a lot and takes extra classes to make my concept better.
Super Tutor Lalpur, Ranchi 39 students 2244 hrs of classes completed 550 per hour Online Classes I am a qualified and dedicated teacher, having 10 years of teaching and research experience across different boards including CBSE, ICSE, IGCSE, IB, GCSE, and Australian Board. I specialize in guiding students from Class 8 to Post Graduation, helping them achieve academic excellence with a tailored and engaging teaching approach. I bring in-depth knowledge and expertise to my sessions. Qualifications: • Ph. D (Science) – BIT Mesra, Ranchi • CSIR UGC NET (2011) AIR-14 • ICAR NET (2010) • ICAR NET (2018) • GATE (2009) My student-centered approach focuses on assessing individual learning needs, bridging knowledge gaps, and fostering critical thinking through interactive methods like discussions, visual aids, and hands-on activities. Regular feedback and personalized guidance empower students to excel and develop a lifelong love for learning.
Dr. Gulsaz is an excellent teacher. She explains the concepts in a way that is easy for the child to understand, she gives them also some extra fun facts. Furthermore she also uses diagrams to explain challenging concepts. Abdullah enjoys her classes and has shown great improvement in his understanding of the concepts and applications as well. I would recommend her definitely
Super Tutor Nerul Sector 20, Thane 62 students 2744 hrs of classes completed 1200 per hour Online Classes I have done b.Tech in electrical engineering from IIT KANPUR. I taught one year in akash institute patna, 2 years in fiitjee patna. Currently I am teaching in unacademy. I have taught more than 6000 jee and neet aspirants. In which more than 500 students are selected in iitand aiims. If some one is interested to improve their physics upto jee advanced level take help with me .And see the magic. I can help students in their all type of assignment from any institute like allen, fiitjee, narayna, akash, resonance. I can help students to solve both volume of h.C verma within two month if some one is intrested in solving I.E.Irodov join me and see the next level of physics. My way of teaching is so easy and so advanced that student will realyy enjoy it. Don't waste your time in making decision just join and experience my level
He is a very dedicated teacher with excellent knowledge on topic. He knows Subject very well and teach accordingly to kids.
Super Tutor Kodambakkam, Chennai 57 students 3488 hrs of classes completed 800 per hour Online Classes With a decade of experience in teaching mathematics, physics, and chemistry for students from grades 8 through 12 across CBSE, IB, and ICSE boards, I offer a comprehensive educational approach that caters to a diverse range of curricula and learning needs. My academic background includes a BE and an MBA, equipping me with both technical and managerial skills that enhance my teaching methodology. Throughout my career, I have specialized in home tutoring, where I have developed a personalized approach to education that focuses on each student's unique needs and strengths. My sessions are designed to be interactive and engaging, fostering a learning environment where students feel supported and motivated. I conduct both online and offline classes, each lasting one hour, and utilize a variety of teaching tools to facilitate learning. I employ a whiteboard to visually explain concepts and provide question papers to help students practice and prepare for their exams. This hands-on approach ensures that students not only understand theoretical concepts but also develop problem-solving skills and confidence in their subjects. My commitment to delivering high-quality education and my extensive experience make me well-suited to guide students through their academic journey, helping them achieve their full potential in mathematics, physics, and chemistry.
Super Tutor Basaveshwara Nagar, Bangalore 11 students 3297 hrs of classes completed 600 per hour Online Classes With over 15 years of dedicated teaching experience, I am an accomplished and qualified educator specializing in Spoken English, Math, Science, Social Science, and Kannada Language. My expertise extends across various educational boards, including CBSE, ICSE, and state boards. Passionate about unraveling the mysteries of mathematical problems and chemical equations. I have garnered recognition with the prestigious Best Teacher Award for orchestrating state-level Science exams. Having contributed my skills to the esteemed MaxMuller Public School in Bangalore, I am committed to fostering a nurturing and inspiring learning environment. Join me on this educational journey where knowledge meets enthusiasm!
Find more Tutor for Refraction by spherical lenses in your City
- Delhi Science Tutors
- Bangalore Science Tutors
- Hyderabad Science Tutors
- Chennai Science Tutors
- Kolkata Science Tutors
- Mumbai Science Tutors
- Noida Science Tutors
- Pune Science Tutors
- Gurgaon Science Tutors
- Lucknow Science Tutors
- Ghaziabad Science Tutors
- Jaipur Science Tutors
FAQ
What is the meaning of Refraction by spherical lenses?
It is a fundamental principle in Light – Reflection and Refraction that explains the nature and characteristics of Refraction by spherical lenses.
Why is Refraction by spherical lenses important for CBSE - Class 10 exams?
This concept is crucial for the exams as questions related to Light – Reflection and Refraction and specifically Refraction by spherical lenses are very common. It helps secure marks in the section effectively.
Is Refraction by spherical lenses part of the latest NCERT syllabus?
Yes, Refraction by spherical lenses is an integral part of the CBSE - Class 10 NCERT Science syllabus. It is a key topic covered in the Light – Reflection and Refraction chapter.
What are common mistakes students make with Refraction by spherical lenses?
Students often miss the minute details or fundamental definitions of Refraction by spherical lenses. Regular revision and practice are needed to master the nuances.
How should I approach learning Refraction by spherical lenses?
Read the NCERT text thoroughly to grasp the theory. Create summary notes and flowcharts to retain the key points of Refraction by spherical lenses.
How can UrbanPro help me understand Refraction by spherical lenses better?
UrbanPro connects you with experienced Science tutors who can explain Refraction by spherical lenses with simple examples. You also get access to doubt-clearing sessions and mock tests for better preparation.
