The Physical World

How many approaches are there in Physics?

• 1

• 3

• 2

• 4

Which fundamental force in nature is the strongest?

• Electromagnetic force

• Gravitational force

• Weak nuclear force

• Strong nuclear force

Name the scientific principle behind the technology 'nuclear reactor'.

• Thermodynamics

• Wave nature of electrons

• Law of inertia

• Controlled nuclear fission

Who gave us the wave theory of light?

• Michael Faraday

• Albert Einstein

• Christian Huygens

• WK Rontgen

How much is strong nuclear force compared to electromagnetic force?

• 1

• 10

• 100

• 1000

Can gravitational force exist without any physical contact between two acting bodies?

How many steps are involved in Scientific method?

• 1

• 3

• 5

• 4

Who discovered the electromagnetic forces?

• Albert Einstein

• Charles Coloumb

• JJ Thomson

• C.V Raman

The range if gravitational force is

A physical quantity needed to pull, push, carry or throw any object is called