A person cannot see distinctly objects kept b | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) The person is suffering from myopia (nearsightedness) because they cannot see distant objects beyond $2\, m$. To correct this defect,a concave len

Vedclass · Accepted Answer

$-0.5$

Vedclass · Answer

(A) The person is suffering from myopia (nearsightedness) because they cannot see distant objects beyond $2\, m$. To correct this defect,a concave lens is used. The focal length $(f)$ of the required lens should be equal to the far point of the person,which is $-2\, m$ (negative because it is a concave lens). The power $(P)$ of a lens is given by the formula $P = 1/f$ (in meters). Substituting the value: $P = 1 / (-2) = -0.5\, D$. Therefore,the correct power of the lens is $-0.5\, D$.

$A$ person cannot see distinctly objects kept beyond $2\, m$. This defect can be corrected by using a lens of power ........ $D$.

Similar Questions

$A$ bifocal lens consists of both concave and convex lenses. Bifocal lenses are required by a person suffering from $.............$.
$P$ - Myopia (nearsightedness)
$Q$ - Hypermetropia (farsightedness)
$R$ - Presbyopia

What is long-sightedness (hypermetropia)?

How is the eye lens held in its position?

Why is the blind spot so called?

When do we consider a person to be myopic or hypermetropic? Explain how the defects associated with a myopic and hypermetropic eye can be corrected.

Vedclass Test Series

Exam Paper Generator

Online Exam Module