EASY
10th ICSE
IMPORTANT
Earn 100

An object is placed on the axis of a lens. An image is formed by refraction in the lens. For all positions of the object on the axis of the lens, the positions of the image are always between the lens and the object. Name the Lens.

Important Questions on Refraction Through a Lens

MEDIUM
10th ICSE
IMPORTANT
Selina Icse Concise Physics For Class 10>Chapter 5 - Refraction Through a Lens>EXERCISE-5(B)>Q 15
Classify as real or virtual, the image of a candle flame formed on a screen by a convex lens. Draw a ray diagram to illustrate how the image is formed. 
MEDIUM
10th ICSE
IMPORTANT
Selina Icse Concise Physics For Class 10>Chapter 5 - Refraction Through a Lens>EXERCISE-5(B)>Q 19
Draw a ray diagram to show how a converging lens is used as a magnifying glass to observe a small object. Mark on your diagram the foci of the lens and the position of the eye.
MEDIUM
10th ICSE
IMPORTANT
Selina Icse Concise Physics For Class 10>Chapter 5 - Refraction Through a Lens>EXERCISE-5(B)>Q 20
Draw a ray diagram to show how a converging lens can form an image of the Sun. Hence, give a reason for the term 'burning glass' for a converging lens used in this manner. 
MEDIUM
10th ICSE
IMPORTANT
Selina Icse Concise Physics For Class 10>Chapter 5 - Refraction Through a Lens>EXERCISE-5(B)>Q 25
Give two characteristics of the image formed by a concave lens.
EASY
10th ICSE
IMPORTANT
Selina Icse Concise Physics For Class 10>Chapter 5 - Refraction Through a Lens>EXERCISE-5(B)>Q 26
Give two characteristics of the virtual image formed by a convex lens.
MEDIUM
10th ICSE
IMPORTANT
Selina Icse Concise Physics For Class 10>Chapter 5 - Refraction Through a Lens>EXERCISE-5(B)>Q 28
Complete the following table.
Type of lens Position of object Nature of image Size of image
convex Between optic centre and focus    
convex At focus    
concave At infinity    
concave At any distance    
EASY
10th ICSE
IMPORTANT
Selina Icse Concise Physics For Class 10>Chapter 5 - Refraction Through a Lens>EXERCISE-5(B)>Q 32
A concave lens, if kept at a proper distance from an object, can form its real image.
EASY
10th ICSE
IMPORTANT
Selina Icse Concise Physics For Class 10>Chapter 5 - Refraction Through a Lens>EXERCISE-5(B)>Q 32
A ray of light incident parallel to the principal axis of a lens, passes undeviated after refraction.