EASY
10th ICSE
IMPORTANT
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A lens forms a magnified, erect and virtual image of an object. Name the device which uses its principle or a device used for magnification.

Important Questions on Refraction Through a Lens

EASY
10th ICSE
IMPORTANT
Selina Icse Concise Physics For Class 10>Chapter 5 - Refraction Through a Lens>EXERCISE-5(B)>Q 14
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.
EASY
10th ICSE
IMPORTANT
Selina Icse Concise Physics For Class 10>Chapter 5 - Refraction Through a Lens>EXERCISE-5(B)>Q 14
An object is placed on the Principle axis of a lens. An image is formed. 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. Draw a ray diagram to show it.
EASY
10th ICSE
IMPORTANT
Selina Icse Concise Physics For Class 10>Chapter 5 - Refraction Through a Lens>EXERCISE-5(B)>Q 14

An object is placed on the Principle axis of a lens. An image is formed. 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. State three characteristics of the image formed.

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 16
Show by a ray diagram that a diverging lens cannot form a real image of an object placed anywhere on its principal axis.
MEDIUM
10th ICSE
IMPORTANT
Selina Icse Concise Physics For Class 10>Chapter 5 - Refraction Through a Lens>EXERCISE-5(B)>Q 17
Draw a ray diagram to show how a converging lens can form a real and enlarged image of an object.
EASY
10th ICSE
IMPORTANT
Selina Icse Concise Physics For Class 10>Chapter 5 - Refraction Through a Lens>EXERCISE-5(B)>Q 18
Where will the image be formed if an object is kept in front of a concave lens at a distance equal to its focal length? Also draw a ray diagram to demonstrate your answer.
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.