MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Chromatic Aberrations

Find the foca...

Question

Find the focal length of the lenses used in her spectacles.

Open in App

Solution

Power of lens = -2.5D
focal length of lens = $\frac{100}{- 25} = - 40 c m$
$f = - 40 c m$

Suggest Corrections

thumbs-up

0

Similar questions

S t d . X

uses spectacles. The power of the lenses in his spectacles is -

0.5 D

.Answer the following questions:
Find the focal length of the lenses used in his spectacles.

Q. Which lenses are used in her spectacles?

Q. A doctor advises a patient to use spectacles with a convex lens of focal length 40 cm in contact with a concave lens of focal length 25 cm. What is the power of the resultant combination:

Q. A boy is using spectacles of focal length -50 cm. Calculate the power of the lens.

Q. doctor prescribes spectacles to a patient with a combination of a convex lens of focal length 40 em, and concave lens of focal length 25 em then the power of spectacles will be.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Defects in Images

PHYSICS

Watch in App

explore_more_icon

Explore more

Chromatic Aberrations

Standard XII Physics

Join BYJU'S Learning Program

CrossIcon