Question
Find the odd one out and give its explanation.
Simple microscope
Compound microscope
Telescope
Prism
Simple microscope
Compound microscope
Telescope
Prism
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cal/g
cal/g °C
kcal/kg °C
erg/g °C
Focal length
Radius of curvature
Image distance
Size of image
Sodium
Potassium
Silver
Sulphur
Rainbow
Earthquake
Sunset
Sunrise
Loud speaker
Microphone
Electric motor
Magnet
Ethylene
Styrene
Propylene
Teflon