Please wait...
Contact Us
Need assistance? Contact us on below numbers

For Study plan details

10:00 AM to 7:00 PM IST all days.

Franchisee/Partner Enquiry (South)

Franchisee/Partner Enquiry (North, West & East)



Thanks, You will receive a call shortly.
Customer Support

You are very important to us

For any content/service related issues please contact on this number

9372462318 / 9987178554

Mon to Sat - 10 AM to 7 PM

Distinguish between concave and convex lens

Asked by sangeeta735200 13th December 2018, 7:52 PM
Answered by Expert

Convex lens has the property of converging the parallel rays to a focal point. Diverging lens has the property of diverging the
parallel rays and makes it to appear that all the rays are emerging from focal point as shown in figure. Due to this converging action,
it is possible to get real image of an object using convex lens. (Real image means that image can be captured on a screen).
Magnification depends on the distance between object and lens. It is not possible to get real image of an object using concave lens alone,
due to its diverging action. Concave lens always gives virtual and diminished image.
Physically, convex lens is thick at middle region and thin at edge. Concave lens is thin at middle region and thick at edge.
If we want to distinguish convex lens and concave lens without touching, we place the lens on top of newspaper or book.
If the letter size appears smaller than its real size, then the  lens is concave. If letter size appears larger than the real size,
then the lens is convex.
Answered by Expert 14th December 2018, 7:01 AM
Rate this answer
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10

You have rated this answer /10

Your answer has been posted successfully!

Chat with us on WhatsApp