A convex lens magnifying glass is of-

Long focal length

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Short focal length

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Very long focal length

No worries! We‘ve got your back. Try BYJU‘S free classes today!

All the above

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is D Short focal length
A shorter focal length gives better magnification, which is usually the most important thing.
In telescopes, the objective lens projects an image on its focal point which works as the object for the eyepiece. Per the property of convex lenses, the eyepiece magnifies the image. If the focal length of the eyepiece is smaller we'll get a higher magnification.

Suggest Corrections

Similar questions

The smaller the focus of a convex lens, more its magnifying capacity, so why don't we use magnifying glasses with very small focal length?

Q. The focal length of a convex lens is 10 cm. The magnifying powers when it is used as a magnifying glass to form the image at (i) near point and (ii) far point are :

A convex lens of very large focal length will make?

Convex lens of very short focal length will make:

Draw a diagram to show how a converging lens held close to the eye acts as a magnifying glass. Why is it usual to choose a lens of short focal length for this purpose rather than one of long focal length ?

Join BYJU'S Learning Program