A number of optical devices and instruments have been designed utilising reflecting and refracting properties of mirrors, lenses and prisms. Which of these is NOT an optical device?

1
kaleidoscope
2
seismoscope
3
Periscope
4
binoculars

Sponsored

hivanix.in

Visit

This quiz is brought to you by hivanix.in

🌐 Web App Development

Quick Navigation