Question

Odd man out. microscope,camera,kaleidoscope,Telescope.

Answer 1

i think so camera was the odd one because all except camera are optical instruments.



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Answer 2

The odd one out is the kaleidoscope.

The rest three of them uses plain mirror whereas kaleidoscope needs a convex and concave mirror.

The convex mirror in kaleidoscope acts as a reflector because it can diverge the rays which will be reflected in a larger area.

The concave mirror can, however, focus all of the rays in a single point and is used in a kaleidoscope.