Likes : 1850 | Dislikes :
Power of lens – Light (Chapter 11): CBSE Class 10 Science
Don’t want to miss your DAILY video, 🔔 SUBSCRIBE:
Dear students for DronStudy Website,
Please visit:
For Complete courses,
Visit:
For DronStudy Live Tutoring,
Visit:
For CBSE Board Question Video Solutions,
Visit:
Social Media Links
Facebook:
Instagram:
TikTok: tiktok.com/@dronstudy.com
Here we describe the topic as the power of lens from CBSE class 10 science.
What is the Power of Lens?
The degree of convergence or divergence of light rays achieved by a lens is expressed in terms of its power.
Power of lens is reciprocal of its focal length. Here Power in denoted by P.
The power P of a lens having focal length f is
Power (p) = 1/focal length (f)
SI unit of Power on the lens is Dioptre and it is denoted by D.
You may note that the power of a convex lens is positive and that of a concave lens is negative.
The shorter the focal length, the greater the power.
Let us say the lens prescribed has power equal to + 4.0 D.
This means the lens prescribed is convex.
The focal length of the lens is + 0.25 m.
A lens of power – 0.5 D has a focal length of – 2 m.
The lens is concave.
All the above-mentioned topics are described in an interactive and efficient manner so that the students could easily understand them.
For more information please visit:
Call us at – 8287971571 or 0261-4890016
Email: contact@dronstudy.com
Facebook Page:
For more information please refer to below-mentioned links:
DronStudy official website:
Class 10 Science Video Lectures:
Class 10 Science Full Course:
DronStudy Youtube Channel:
#Power of lens #lens formula #class10 science
For latest Fitness tips visit Fit & Fine
source