CLASS-
X
SUBJECT-SCIENCE
Q.1 We wish to obtain an erect image
of an object, using a concave mirror of focal length 15 cm. What should be the
range of distance of the object from the mirror? What is the nature of the
image? Is the image larger or smaller than the object? Draw a ray diagram to
show the image formation in this case.
Q.2 An object 5 cm in length is held
25 cm away from a converging lens of focal length 10 cm. Draw the ray diagram
and find the position, size and nature of the image formed.
Q.3 A concave lens of focal length 15
cm forms an image 10 cm from the lens. How far is the object placed from the
lens? Draw the ray diagram also.
Q.4 An object is placed at a distance
of 10 cm from a convex mirror of focal length 15 cm. Find the position and
nature of the image. Draw ray diagram also.
Q.5 Write uses of concave & convex
mirror both.
Q.6 Read chapter 01 –Chemical
reactions and equations carefully and prepare short notes in your note book.
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