Answer:
Telescope
Explanation:
Telescope is used to make distant objects appear nearer and larger.
For example study of stars in sky is done with the help of telescope.
The other instruments used are
a) microscope: it enlarges the size of image of a microscopic thing. Example study of bacteria.
b) probeware: It is a kind of tool which provides a link or connection between probes and sensor through computer system.
c) an ultrasound : it can be used to study visceral organs of our body.
