Question

Q.3 How will you modify the structure of a simple periscope to look under your study table by sitting
on a chair? Draw a neat labelled ray diagram and evaluate the type of image that will be
observed by you in that case on the basis of the following-
a. virtual/ real
b. erect/inverted
c. diminished/ magnified/ same size as the object
Q.4 You were gifted a cardboard periscope on your birthday, but unfortunately one of the plane
mirrors of your periscope has got broken. How will you reconstruct the periscope if no mirrors
are available with you? Do you think it will work as good as before? Write a report in 4 to 6
sentences. Consider the following points-
a. what alternate materials/ tools you will use instead of the plane mirror
b. how will you assemble those to construct the periscope
c. how will these modifications effect the performance of the telescope

Answer 1

Real
Inverted
Same size