Question

Which of the following is at-a-distance or field force?

A.All of the answers are correct

B.Electromagnetic

C.Gravity

D.Nuclear

Answer 1

All the given forces i.e electromagnetic, gravity and nuclear force over a given field and hence can be categorized as field force.

Option A.

Step-by-step explanation:

A field force is a force is a type of force that acts over an area of field. A field force, also known as noncontact or at-a-distance force are of four types namely,

• Gravity- attractive force between two objects placed anywhere on the surface of the earth.
• Electromagnetic force-physical interaction that acts between two electrically charged bodies
• Strong nuclear force- caused by the exchange of any of the three subatomic particles, pions (
  `\bold{\pi^0, \pi^+, \pi^-}`
• Weak nuclear force- mechanism of the movement and interactions between the subatomic particles responsible for the radioactive decay of atoms.

Answer 2

A - all of the answers are correct

Step-by-step explanation:

Field force exists in or is confined / restricted to a given region of space.

All the options stated in the question exists in a confined space without direct contact, touch or hold to any object.