CameraIcon

SearchIcon

MyQuestionIcon

4

You visited us 4 times! Enjoying our articles? Unlock Full Access!

Myopia and Its Correction

A person cann...

Question

A person cannot see objects clearly beyond 50cm. The power of lens to correct the vision is

A

+5D

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

B

-2D

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

C

-0.5D

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

D

+2D

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

Open in App

Solution

The correct option is D -2D
A person cannot see beyond 50 cm. Hence, he should use a concave lens of 50 cm focal length.Hence $P o w e r = \frac{- 100}{50} = - 2 D$

Suggest Corrections

thumbs-up

1

Similar questions

Q. Assertion :A short-sighted person can not see objects clearly when placed beyond

50 c m

. He should use a concave lens of power

2 D

. Reason: The concave lens should form the image of the object at infinity at a distance of

50 c m

.

Q. A person cannot see objects beyond 5 m clearly. What should be the power of the corrective lens?

Q. A person cannot see objects clearly beyond

50 cm .

What should be the power of corrective lens used ?

Q. A person cannot see any object placed beyond 50cm from his eye. Calculate the power of the lens which will enable him to see the distant stars clearly.

Q. A near sighted person cannot see distinctly beyond

50 c m

from his eye. The power in diopter of spectacle lenses which will enable him to see distant objects clearly is:

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Power of Accommodation and Defects

PHYSICS

Watch in App

explore_more_icon

Explore more

Myopia and Its Correction

Standard X Physics

Join BYJU'S Learning Program

CrossIcon