Fill in the blanks in the following.
1. A person 1 m in front of a plane mirror seems to be ___ m away from his image.
2. If you touch your ___ ear with right hand in front of a plane mirror it will be seen in the mirror that your right ear is touched with ___.
3. The size of the pupil becomes ___ when you see in dim light.
4. Night birds have ___ cones than rods in their eyes.