Choose the correct answer. What is the SI unit of pressure?

✅ A. Ammeter

An ammeter measures electric current. Read more

✅ D. Refraction

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

✅ B. Hertz

Frequency is measured in hertz. Read more

✅ A. Mass × velocity

Linear momentum is p = mv. Read more

✅ C. Tesla

Magnetic flux density is measured in teslas. Read more

✅ C. Tesla

Magnetic flux density is measured in teslas. Read more

✅ B. Convex lens

A convex lens is thicker at the center and converges parallel light rays. Read more

✅ B. Lever

A lever is a rigid bar that rotates around a fulcrum. Read more