Which of the following is correct? Which quantity is measured in joules?

✅ A. Energy

The joule is the SI unit of energy and work. Read more

✅ A. Refraction

Refraction is the change in direction of light due to a change in speed between media. Read more

✅ B. Elastic potential energy

A stretched spring stores elastic potential energy. Read more

✅ A. Hertz

Frequency is measured in hertz. Read more

✅ B. Tesla

Magnetic flux density is measured in teslas. Read more

✅ A. Ammeter

An ammeter measures electric current. Read more

✅ C. Energy

The joule is the SI unit of energy and work. Read more

✅ B. Elastic potential energy

A stretched spring stores elastic potential energy. Read more