SPECTROSCOPY EXAMINATION QUESTIONS AND
CORRECT ANSWER WITH EXPLANATION GRADED A+
STUDY GUIDE SOUTHERN NEW HAMPSHIRE UNIVERSITY
1. Spectroscopy is the study of:
A. Interaction of matter with electromagnetic radiation
B. Rocks and minerals
C. Heat transfer only
D. Chemical reactions only
Answer: A
Rationale: It analyzes light-matter interaction.
2. Electromagnetic radiation consists of:
A. Electric and magnetic fields
B. Only particles
C. Only heat
D. Only sound
Answer: A
Rationale: Light has electric and magnetic components.
3. Wavelength is defined as:
A. Distance between two wave peaks
B. Number of waves
C. Energy only
D. Speed of light
Answer: A
Rationale: Spatial period of a wave.
4. Frequency is:
A. Number of waves per second
B. Wave height
C. Distance between waves
D. Energy lost
Answer: A
Rationale: Measured in Hz.
5. Speed of light is:
A. 3.0 × 10⁸ m/s
, B. 3.0 × 10⁶ m/s
C. 1.0 × 10⁸ m/s
D. 9.8 m/s²
Answer: A
Rationale: Constant in vacuum.
6. Relationship between wavelength and frequency is:
A. c = λν
B. E = mc²
C. PV = nRT
D. F = ma
Answer: A
Rationale: Wave equation.
7. Energy of photon is:
A. E = hν
B. E = mc²
C. F = ma
D. PV = nRT
Answer: A
Rationale: Planck’s equation.
8. Planck’s constant is:
A. 6.626 × 10⁻³⁴ Js
B. 9.8 m/s²
C. 3.0 × 10⁸
D. 1.6 × 10⁻¹⁹
Answer: A
Rationale: Quantum energy constant.
9. Electromagnetic spectrum includes:
A. Radio to gamma rays
B. Only visible light
C. Only sound waves
D. Only heat
Answer: A
Rationale: Full radiation range.
10. Visible light range is:
A. 400–700 nm
, B. 100–200 nm
C. 800–1000 nm
D. 10–50 nm
Answer: A
Rationale: Human eye sensitivity.
11. UV radiation has:
A. Shorter wavelength than visible light
B. Longer wavelength than visible light
C. No energy
D. No frequency
Answer: A
Rationale: Higher energy radiation.
12. IR radiation is associated with:
A. Heat
B. Gamma rays
C. X-rays
D. UV light
Answer: A
Rationale: Thermal radiation.
13. Spectroscopy measures:
A. Absorption and emission of light
B. Mass only
C. Volume only
D. Pressure only
Answer: A
Rationale: Light interaction analysis.
14. Absorption occurs when:
A. Electrons gain energy
B. Electrons lose energy
C. Atoms disappear
D. Mass increases
Answer: A
Rationale: Energy uptake process.
15. Emission occurs when:
A. Electrons release energy
CORRECT ANSWER WITH EXPLANATION GRADED A+
STUDY GUIDE SOUTHERN NEW HAMPSHIRE UNIVERSITY
1. Spectroscopy is the study of:
A. Interaction of matter with electromagnetic radiation
B. Rocks and minerals
C. Heat transfer only
D. Chemical reactions only
Answer: A
Rationale: It analyzes light-matter interaction.
2. Electromagnetic radiation consists of:
A. Electric and magnetic fields
B. Only particles
C. Only heat
D. Only sound
Answer: A
Rationale: Light has electric and magnetic components.
3. Wavelength is defined as:
A. Distance between two wave peaks
B. Number of waves
C. Energy only
D. Speed of light
Answer: A
Rationale: Spatial period of a wave.
4. Frequency is:
A. Number of waves per second
B. Wave height
C. Distance between waves
D. Energy lost
Answer: A
Rationale: Measured in Hz.
5. Speed of light is:
A. 3.0 × 10⁸ m/s
, B. 3.0 × 10⁶ m/s
C. 1.0 × 10⁸ m/s
D. 9.8 m/s²
Answer: A
Rationale: Constant in vacuum.
6. Relationship between wavelength and frequency is:
A. c = λν
B. E = mc²
C. PV = nRT
D. F = ma
Answer: A
Rationale: Wave equation.
7. Energy of photon is:
A. E = hν
B. E = mc²
C. F = ma
D. PV = nRT
Answer: A
Rationale: Planck’s equation.
8. Planck’s constant is:
A. 6.626 × 10⁻³⁴ Js
B. 9.8 m/s²
C. 3.0 × 10⁸
D. 1.6 × 10⁻¹⁹
Answer: A
Rationale: Quantum energy constant.
9. Electromagnetic spectrum includes:
A. Radio to gamma rays
B. Only visible light
C. Only sound waves
D. Only heat
Answer: A
Rationale: Full radiation range.
10. Visible light range is:
A. 400–700 nm
, B. 100–200 nm
C. 800–1000 nm
D. 10–50 nm
Answer: A
Rationale: Human eye sensitivity.
11. UV radiation has:
A. Shorter wavelength than visible light
B. Longer wavelength than visible light
C. No energy
D. No frequency
Answer: A
Rationale: Higher energy radiation.
12. IR radiation is associated with:
A. Heat
B. Gamma rays
C. X-rays
D. UV light
Answer: A
Rationale: Thermal radiation.
13. Spectroscopy measures:
A. Absorption and emission of light
B. Mass only
C. Volume only
D. Pressure only
Answer: A
Rationale: Light interaction analysis.
14. Absorption occurs when:
A. Electrons gain energy
B. Electrons lose energy
C. Atoms disappear
D. Mass increases
Answer: A
Rationale: Energy uptake process.
15. Emission occurs when:
A. Electrons release energy
