Q. 195.0( 3 Votes )

(a) Define focal

Answer :

(a) Focal length of a spherical lens is defined as the distance between optical center and focus of the lens.

(b)Given: focal length of concave lens f = -30 cm


Height of the object, h1 = 5 cm


Image distance, v = -15 cm


Applying the lens formula







Now, size of image can be calculated as follows:





(c)The ray diagram is as follows:



Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
All GrammarAll GrammarAll Grammar41 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses
RELATED QUESTIONS :

<span lang="EN-USNCERT - Science Exemplar

Name the physicalLakhmir Singh & Manjit Kaur - Physics