Tap the odd one out

Exercise and reference answers

Questions

1. Items

   1. Ammeter
   2. Voltmeter
   3. Galvanometer
   4. Barometer

   Reason

   A barometer measures pressure; the others measure electrical quantities.

   Odd item

   Barometer

2. Items

   1. Cuboid
   2. Concave
   3. Convex
   4. Plane

   Reason

   Cuboid is a solid shape; the others are types of mirrors.

   Odd item

   Cuboid

3. Items

   1. Retina
   2. Femur
   3. Cornea
   4. Iris

   Reason

   The femur is a bone; the others are parts of the eye.

   Odd item

   Femur

Instructions

Tap the odd one out.