Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 10 Answered

Define the focal length of lens    
Asked by dilipvenkat259 | 10 Jan, 2020, 04:53: AM
answered-by-expert Expert Answer
For a convex lens or converging lens, parallel light rays coming from one side of lens are getting
converged at other side in a point F as shown in figure.
The distance between optical centre O of lens to focal point F is called the focal length of convex lens.
 
Similarly, for concave lens or divering lens, parallel rays coming from one side of lens are getting diverged
on other side and appears on other side that they are coming from a point F .
The distance between optical centre O of lens to focal point F is called the focal length of concave lens.
Answered by Thiyagarajan K | 10 Jan, 2020, 08:54: AM
CBSE 10 - Physics
Asked by ramkrushnaramkrushna1 | 07 Jul, 2024, 19:01: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
Asked by kk7629948076 | 03 Jun, 2024, 23:17: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
Asked by agankitgupta938 | 18 Apr, 2024, 16:29: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
Asked by infinityupgraded | 13 Apr, 2024, 08:17: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
Asked by suryamr2019 | 08 Mar, 2024, 16:32: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
Are You a Teacher or a Parent Seeking Customised Tests? Click here
×