ICSE Class 10th Science Chapter 4 - Refraction through a lense Important Questions with Answers

You should focus on solving ICSE Class 10th Science Chapter 4: Refraction through a lense important questions, especially to help you score high marks. By solving ICSE Class 10th Science 4 questions, you will be solving exam-oriented questions only.
examUpdate

Never Miss an Exam Update

Prepare thoroughly with the most important questions of ICSE Class 10th Science Chapter 4 - Refraction through a lense. You can first cover the ICSE Class 10th Science syllabus to understand the key topics and then start solving the ICSE Class 10th Science Chapter 4 - Refraction through a lense Important Question to get a better understanding of your preparation level. Start practicing now.

Are you feeling lost and unsure about what career path to take after completing 12th standard?

Say goodbye to confusion and hello to a bright future!

news_cta
Read More
/cisce-board-class-10-science-chapter-4-refraction-through-a-lense-important-questions-brd

Question 1.

img

In a reading glass what is the position of the object with respect to the convex lens used?

Question 2.

img

In a reading glass what is the position of the object with respect to the concave lens used?

Question 3.

img

The image of a candle flame placed at a distance of 36 cm from a spherical lens, is formed on a screen placed at a distance of 72 cm from the lens. Calculate the focal length of the lens and its power.

Question 4.

img

Mixture of red + blue + green is passed through a convex lens as shown in the diagram below. State whether the ray passes through a single point or through different points on the principal axis after refraction.

Question 5.

img

Define the power of a lens.

Question 6.

img

An object is placed at a distance 24 cm in front of a convex lens of focal length 8 cm.

(i) What is the nature of the image so formed?
(ii) Calculate the distance of the image from the lens.
(iii) Calculate the magnification of the image.

Question 7.

img

When a ray of light enters from one medium to another having different optical densities it bends. Why does this phenomenon occur?

Question 8.

img

Write one condition where it does not bend when entering a medium of different optical density.

Question 9.

img

Where should an object be placed so that a real and inverted image of the same size as the object is obtained using a convex lens?

Question 10.

img

Ranbir claims to have obtained an image twice the size of the object with a concave lens. Is he correct? Give a reason for your answer.

Great Job! continue working on more practice questions?

Question 1.

img

A lens forms an erect, magnified, and virtual image of an object. Draw a labelled ray diagram to show the image formation. 

Question 2.

img

The lens mentioned in 6(b) above is of focal length 25cm. Calculate the power of the lens.

Question 3.

img

An object is placed at a distance of 12 cm from a convex lens of focal length 8 cm. Find :

1) the position of the image

2) nature of the image

Question 4.

img

Define the term principal axis of a lens.

Question 5.

img

How will you differentiate between a convex and a concave lens by looking at

  1. a distant object,
  2. a printed page?

Question 6.

img

A virtual diminished image is formed when an object is placed between the optical centre and the principal focus of a lens.

(i) Name the type of lens which forms the above image.
(ii) Draw a ray diagram to show the formation of the image with the above stated characteristics.

Question 7.

img

A concave lens produces only ______ image.

Question 8.

img

Is it possible for a concave lens to form an image of size two times that of the object? Write Yes or No.

Question 9.

img

What will happen to the focal length of the lens if a part of the lens is covered with an opaque paper?

Question 10.

img

A convex lens of focal length 10 cm is placed at a distance of 60 cm from a screen. How far from the lens should an object be placed so as to obtain a real image on the screen?

Great Job! continue working on more practice questions?

Other CISCE Board Class 10th Subjects Important Questions

Do you have a question? Ask us.

  • Typical response between 24-48 hours

  • Get personalized response

  • Free of Cost

  • Access to community

Subscribe to CollegeDekho News

By proceeding ahead you expressly agree to the CollegeDekho terms of use and privacy policy

Trending Articles