Electron Volt -Multiple Choice Questions Quiz

Interactive MCQs on “Electron Volt”:

Solve the following 10 questions. Only one option is correct. Click on the “Submit” button when done. Click on the “embed” button to use this quiz on your website. Click on “WhatsApp” to share this quiz.

Question 1: What is an electron volt (eV) a unit of?

(a) Electric charge
(b) Electric current
(c) Energy
(d) Voltage

Question 2: What is the value of one electron volt (eV) in joules (J)?

(a) 1.6 x 10^-19 J
(b) 1.6 x 10^-12 J
(c) 1.6 x 10^-9 J
(d) 1.6 x 10^-6 J

Question 3: Which of the following particles has a charge of approximately +1 eV?

(a) Proton
(b) Electron
(c) Neutron
(d) Photon

Question 4: What does it mean if an electron gains 3 eV of energy?

(a) The electron has gained 3 units of electric charge.
(b) The electron has accelerated to a speed of 3 meters per second.
(c) The electron has gained 3 joules of kinetic energy.
(d) The electron has gained 3 volts of electric potential.

Question 5: What is the kinetic energy of an electron accelerated through a potential difference of 10 volts?

(a) 1.6 x 10^-19 J
(b) 10 eV
(c) 16 x 10^-19 J
(d) 1.6 x 10^-18 J

Question 6: Which of the following statements about electron volt (eV) is true?

(a) It is a unit of electric charge.
(b) It is used to measure the electric potential difference.
(c) It is equal to the charge of a single electron.
(d) It is a convenient unit for expressing atomic and subatomic energies.

Question 7: A photon with an energy of 2.5 eV strikes a material and releases an electron with a kinetic energy of 1.8 eV. What is the work function of the material?

(a) 0.7 eV
(b) 4.3 eV
(c) 3.7 eV
(d) 0.3 eV

Question 8: What is the kinetic energy of an electron at rest?

(a) 1 eV
(b) 0 eV
(c) -1 eV
(d) 0.5 eV

Question 9: Which scientific field commonly uses electron volts (eV) as a unit for expressing particle energies?

(a) Geology
(b) Astrophysics
(c) Chemistry
(d) Particle physics

Question 10: What is the energy equivalent of one mole of photons, each with a wavelength of 600 nm (nanometers)?

(a) 1.6 x 10^-19 J
(b) 6.022 x 10^23 eV
(c) 360 kJ
(d) 22.4 eV