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How to use a spherometer | Radius of curvature | Physics XI in urdu | PBA | Physics XI in urdu | Practical based assessment | first year Physics
How to use sperometer in Urdu/ Hindi | Using a spherometer .
Mastering Practical Optics: How to Measure the Radius of Curvature of Convex Lenses and Mirrors with a Spherometer | FSC College Prep | Are you gearing up for the practical assessments in this year's FBISE HSSC exams? Look no further! In this comprehensive video tutorial tailored specifically for FSC college students, we delve into the intricacies of measuring the radius of curvature of convex lenses and mirrors using a spherometer.
Join us as we demystify the practical aspects of optics and equip you with the skills and knowledge needed to ace your upcoming exams.
Steps to Measure the Radius of Curvature:
Setup and Calibration: Learn how to properly set up your spherometer on a stable surface and calibrate it to ensure accurate measurements.
Preparing the Lens or Mirror: Understand the importance of preparing the convex surface of the lens or mirror, ensuring it is clean and free from any imperfections.
Placing the Spherometer: Carefully place the spherometer on the convex surface of the lens or mirror, ensuring it makes gentle contact without applying excessive pressure.
Taking Measurements: Use the spherometer's fine adjustment knob to lower the central needle until it touches the surface, then record the height indicated on the scale.
Calculating the Radius: Apply the formula for calculating the radius of curvature using the recorded height measurement and the spherometer's constant.
Interpreting Results: Understand how to interpret your measurements and ensure they align with the expected values for the lens or mirror under examination.
With clear explanations, practical demonstrations, and insider tips, you'll be well-prepared to tackle any practical-based assessment thrown your way.
Don't let optics be a daunting subject - empower yourself with the tools and know-how to excel in your exams. Watch now and embark on your journey to practical optics mastery! #FSCPracticals #HSSCExams #OpticsTutorial #Spherometer #PhysicsPracticals"
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How to use screw gauge animation
Time codes
0:00 - Introduction
An introduction to the spherometer , why we need it and its usefulness.
0:32 - Construction
Spherometer consists of two Scales namely the main scale and the circular scacle.
0:55 - Least count
The least count can be measured by dividing the pitch of screw with the total divisions on the circular scale. The least count of a typical screw gauge is usually 0.01 mm.
2:05 - Zero error
Two types of zero errors may exist, the positive and the negative zero error.
3:38 - Taking measurements
How to take measurements using a screw gauge. First we need to note the main scale reading and then the circular scale reading.
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