ELECTROLYSIS IBEC & LASER STATE
BOARD FINAL EXAM 2026/2027
QUESTIONS AND CORRECT ANSWERS.
1. In Galvanic electrolysis, what is the chemical produced at the negative electrode (cathode)?
A. Hydrochloric Acid
B. Chlorine Gas
C. Oxygen Gas
D. Sodium Hydroxide (Lye)
Answer: D
Conceptual Explanation: Galvanic electrolysis uses direct current to cause a chemical
reaction in the follicle, producing Sodium Hydroxide (Lye), which decomposes the tissue.
2. Which hair growth phase is considered the most effective for permanent hair removal via
electrolysis?
A. Catagen
B. Telogen
C. Anagen
D. Exogen
,Answer: C
Conceptual Explanation: Anagen is the active growth phase where the hair is most
connected to the dermal papilla, allowing for more effective destruction of the germinative
cells.
3. According to Ohm’s Law, what happens to the current if the resistance increases while the
voltage remains constant?
A. Current increases
B. Voltage doubles
C. Current remains the same
D. Current decreases
Answer: D
Conceptual Explanation: Ohm’s Law states V = I x R. If Resistance (R) increases and
Voltage (V) is constant, Current (I) must decrease.
4. The process of ‘Selective Photothermolysis’ in laser hair removal primarily depends on
which three factors?
A. Probe size, Current, and Time
B. Wavelength, Pulse Duration, and Fluence
C. Resistance, Voltage, and Amperage
D. Melanin, Sebum, and Keratin
, Answer: B
Conceptual Explanation: Selective photothermolysis requires the right wavelength for the
chromophore, pulse duration shorter than the thermal relaxation time, and sufficient
fluence to damage the target.
5. Which type of hair is fine, short, and usually non-pigmented?
A. Terminal hair
B. Lanugo hair
C. Intermediate hair
D. Vellus hair
Answer: D
Conceptual Explanation: Vellus hair is the ‘peach fuzz’ found on most areas of the body,
distinct from the coarser terminal hair.
6. High Frequency (Thermolysis) works based on what physical principle?
A. Oscillation of molecules causing friction and heat
B. Electrolytic action
C. Chemical decomposition
D. Ionization of sodium chloride
Answer: A
BOARD FINAL EXAM 2026/2027
QUESTIONS AND CORRECT ANSWERS.
1. In Galvanic electrolysis, what is the chemical produced at the negative electrode (cathode)?
A. Hydrochloric Acid
B. Chlorine Gas
C. Oxygen Gas
D. Sodium Hydroxide (Lye)
Answer: D
Conceptual Explanation: Galvanic electrolysis uses direct current to cause a chemical
reaction in the follicle, producing Sodium Hydroxide (Lye), which decomposes the tissue.
2. Which hair growth phase is considered the most effective for permanent hair removal via
electrolysis?
A. Catagen
B. Telogen
C. Anagen
D. Exogen
,Answer: C
Conceptual Explanation: Anagen is the active growth phase where the hair is most
connected to the dermal papilla, allowing for more effective destruction of the germinative
cells.
3. According to Ohm’s Law, what happens to the current if the resistance increases while the
voltage remains constant?
A. Current increases
B. Voltage doubles
C. Current remains the same
D. Current decreases
Answer: D
Conceptual Explanation: Ohm’s Law states V = I x R. If Resistance (R) increases and
Voltage (V) is constant, Current (I) must decrease.
4. The process of ‘Selective Photothermolysis’ in laser hair removal primarily depends on
which three factors?
A. Probe size, Current, and Time
B. Wavelength, Pulse Duration, and Fluence
C. Resistance, Voltage, and Amperage
D. Melanin, Sebum, and Keratin
, Answer: B
Conceptual Explanation: Selective photothermolysis requires the right wavelength for the
chromophore, pulse duration shorter than the thermal relaxation time, and sufficient
fluence to damage the target.
5. Which type of hair is fine, short, and usually non-pigmented?
A. Terminal hair
B. Lanugo hair
C. Intermediate hair
D. Vellus hair
Answer: D
Conceptual Explanation: Vellus hair is the ‘peach fuzz’ found on most areas of the body,
distinct from the coarser terminal hair.
6. High Frequency (Thermolysis) works based on what physical principle?
A. Oscillation of molecules causing friction and heat
B. Electrolytic action
C. Chemical decomposition
D. Ionization of sodium chloride
Answer: A
