Class 10 ICSE Physics Refraction through a lens Most Likely Questions
Here we provide Class 10 physics important notes,board questions and predicted questions with Answers for chapter Refraction through a lens. These important notes,board questions and predicted questions are based on ICSE board curriculum and correspond to the most recent Class 10 physics syllabus. By practising these Class 10 materials, students will be able to quickly review all of the ideas covered in the chapter and prepare for the Class 10 Board examinations.
Class 10 ICSE Refraction through a lens Most Likely Questions
Refraction through a lens Most Likely Questions
Q1
A beam of light incident on a thin concave lens parallel to its principal axis diverges and appears
to come from a point F on the principal axis. Name the point F. Draw a ray diagram to show it.
solutions
solutions
Q2
A parallel oblique beam of light falls on a (i) convex lens, (ii) concave lens.
Draw a diagram in each case to show the refraction of light through the lens.
solutions
Draw a diagram in each case to show the refraction of light through the lens.
solutions
Q3
Study the diagram below :
(i) Name the lens LL'.
(ii)What are the points O and O' called?
(iii)Complete the diagram to from the image of the object AB.
(iv) State three characteristics of the image.
solutions
(i) Name the lens LL'.
(ii)What are the points O and O' called?
(iii)Complete the diagram to from the image of the object AB.
(iv) State three characteristics of the image.
solutions
Q4
The following diagram in Fig. shows an object AB and a converging lens L with foci F1 and
F2.
(a) Draw two rays from the object AB and complete the diagram to locate the position of the image CD. Also mark on the diagram the position of eye from where the image can be viewed.
(b) State 3 characterstics of the image in relation of the object.
solutions
(a) Draw two rays from the object AB and complete the diagram to locate the position of the image CD. Also mark on the diagram the position of eye from where the image can be viewed.
(b) State 3 characterstics of the image in relation of the object.
solutions
Q5
A lens always forms an image between the object and the lens. (a) name the lens. (b) Draw a ray
diagram to shown the formation of such image. (c) state three characteristics of the image
solutions
solutions
Q6
The focal length of a convex lens is 25 cm. At w hat distance from the optical centre of the lens an
object be placed to obtain a virtual image of twice the size?
solutions
solutions
Q7
A lens forms the image of an object placed at a distance 15 cm from it, at a distance 60 cm in front
of it. Find: (i) the focal length, (ii) the magnification, and (iii) the nature of image.
solutions
solutions
Q8
A lens forms the image of an object placed at a distance of 45 cm from it on a screen placed at a
distance 90 cm on other side of it. (a) name the kind of lens. (b) find: (i) the focal length of
lens, (ii) the magnification of image.
solutions
solutions
Q9
A concave lens forms an erect image of 1/3rd size of the object which is placed at a
distance 30 cm in front of the lens. Find: (a) The position of image, and (b) The focal length of
the lens.
solutions
solutions
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