As per the question
The object distance is u=-60cm
Virtual image is v =-20cm
⇒ f= -30cm
From above we can conclude that as the focal length is negative it is diverging in nature and is a concave lens.
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
view all courses
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation