Which of the following devices is used for measuring distance?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is Option 2 i.e. Odometer.
- An odometer is used to measure the distance traveled by a vehicle.
- An odometer is typically found on the dashboard of a car and can be either mechanical or digital.
- It tracks the distance traveled by counting the rotations of the wheels.
Other Options:
Gnomon: A gnomon is the upright part of a sundial that casts a shadow to indicate the time of day. As the sun moves, the shadow shifts, helping measure time accurately.
Manometer: A manometer is used to measure the pressure of gases or liquids in pipes or tanks. It’s commonly seen in science labs and industrial systems.
Pyrometer: A pyrometer measures extremely high temperatures without touching the object.
It is widely used in furnaces, metal foundries, and glass manufacturing.