Q. 115.0( 3 Votes )

<span lang="EN-US

Answer :

Given: Object distance, u = -45 cm


Image distance, v = +90 cm (real)


Height of the object, = 2 cm


We need to calculate the Focal length


Applying the lens formula which is given as:







Since, focal length is positive, so the lens is convex lens.


Magnification is given by the following relation;





Also, the magnification is given by the ratio of height of image to the height of object.


So,




The negative sign shows that the image is inverted.


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
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