Why is a convex mirror is used as looking glass in vehicles?
Why is a plane mirror used for looking our face?
What are the rules for drawing a ray diagram in a convex mirror?
What is the process to draw a ray diagram for a concave mirror?
What is the difference between a real image and a virtual image?
There is a constriction made in a clinical thermometer. Why?
An alcohol thermometer cannot measure the temperature of boiling water, why?
What is the difference between a Clinical thermometer and a simple thermometer?
Convert -40 ºF in to Celsius scale.