Physics - Study Mode

[#746] The dimension of Planck constant equals to that of
Correct Answer

(C) Angular momentum

Explanation

Solution: The dimension of Planck constant equals to that of angular momentum.

[#747] The recoiling of gun is an example of which of the following?
Correct Answer

(B) Law of Conservation of Linear Momentum

Explanation

Solution: The recoiling of gun is an example of Law of Conservation of Linear Momentum. When gun fires a bullet, it experiences a force in forward direction (action) , as a result the gun exerts a backward force (reaction) on the shoulder.

[#748] Ohm's law is valid in case of
Correct Answer

(B) Conductor

Explanation

Solution: Ohm's law is valid in case of conductor.

[#749] Electrical burns occur principally because of
Correct Answer

(B) The heat generated by the flow of electrical current through the body

Explanation

Solution: Electrical burns are among the most serious burns and require immediate medical attention. They occur when electric current flows through tissues or bone, generating heat that causes tissue damage. Arc or flash burns result from high temperatures caused by an electric arc or explosion near the body.

[#750] The SI unit of resistance is:
Correct Answer

(C) Ohm

Explanation

Solution: The SI unit of resistance is Ohm.