Question 191 markMCQSection A

$Assertion (A): A person suffering from myopia cannot see the distant objects clearly. Reason (R): A converging lens is used for the correction of myopic eye as it can form real as well as virtual images of the objects placed in front of it.$

The Human Eye and the Colourful World

Defects of Vision and Their Correction

Options

(a)

Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).

(b)

Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).

(c)

Assertion (A) is true, but Reason (R) is false.

(d)

Assertion (A) is false, but Reason (R) is true.

Official answer

A person suffering from myopia cannot see distant objects clearly because the image of distant objects is formed in front of the retina. The correction of myopic eye is done by using a concave lens, which can form a virtual image of the objects placed in front of it.

myopia

concave lens

virtual image

Marking scheme

1. $1 mark$

Hint

$Myopia is a defect of vision in which a person cannot see distant objects clearly.$

Quick oral answer

$A person suffering from myopia cannot see distant objects clearly because the image of distant objects is formed in front of the retina. The correction of myopic eye is done by using a concave lens, which can form a virtual image of the objects placed in front of it.$

Common mistakes

1. $Using a converging lens for the correction of myopic eye.$

Analysis and explanation

The assertion is true as a person suffering from myopia cannot see distant objects clearly. However, the reason is false as a converging lens is not used for the correction of myopic eye. A concave lens is used for the correction of myopic eye as it can form a virtual image of the objects placed in front of it.

Interesting facts

$Myopia is also known as near-sightedness.$

Question details

Q19 of 39 questions

Board: CBSE
Class: Class 10
Subject: Science
Year: 2023
Section: Section A
Marks: 1
Type: MCQ
Chapter: The Human Eye and the Colourful World
Topic: $Defects of Vision and Their Correction$
Bloom's level: Remembering
Syllabus topic: $Defects of Vision and Their Correction$

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Frequently asked questions

$How many marks does this question carry in CBSE Class 10 Science 2023?$

$This question carries 1 mark in the CBSE Class 10 Science 2023 examination.$

$Which chapter does this question come from in Science?$

$This question is from the chapter "The Human Eye and the Colourful World" in the CBSE Class 10 Science syllabus.$

$What topic does this question cover in Science?$

$This question covers the topic "Defects of Vision and Their Correction" from CBSE Class 10 Science.$

$What type of question is this in the CBSE Class 10 Science 2023 paper?$

$This is a MCQ question from Section A in the CBSE Class 10 Science 2023 paper.$