Physics - Study Mode

[#901] Who indirectly determined the mass of the electron by measuring the charge of the electron?
Correct Answer

(B) Millikan

Explanation

Solution: Millikan determined the mass of the electron by measuring the charge of the electron.

[#902] When an atom loses an electron it becomes
Correct Answer

(C) Positive ion

Explanation

Solution: When an atom loses electron(s) it will lose some of its negative charge and so becomes positively charged. A positive ion is formed where an atom has more protons than electrons.

[#903] What is the size of Electron as comapared to Proton and Neutron?
Correct Answer

(C) 1/1836

Explanation

Solution: Electrons are tiny compared to protons and neutrons, over 1,800 times smaller than either a proton or a neutron. 1836 times smaller to be exact.

[#904] The force that binds the neutrons and protons in a nucleus is called as:
Correct Answer

(B) Strong Nuclear Force

Explanation

Solution: Strong Nuclear Force is the force that binds the neutrons and protons in a nucleus.

[#905] The velocity of sound is more in
Correct Answer

(C) Steel

Explanation

Solution: The speed of sound is faster in solid materials and slower in liquids or gases. The velocity of a sound wave is affected by two properties of matter: the elastic properties and density.