Chem 103 Exam | Verified Exam Questions and Answers | Latest Updated Study Material 2026

Chem 103 Exam | Verified Exam Questions and Answers | Latest Updated
Study Material 2026
Question:
As wavelength increases, frequency...
Answer:

decreases

Question:
As energy increases, wavelength...
Answer:

decreases

Question:
As frequency increases, energy...
Answer:

increases

Question:
Which light has a higher frequency: blue or red?
Answer:

Blue

Question:
The properties of electromagnetic radiation in terms of frequency, wavelength, and energy
Answer:

Wavelength is inversely proportional to frequency. Frequency is directly proportional to energy. Energy
is inversely proportional to wavelength.

Question:
According to experiments concerned with the photoelectric effect, which of the following will increase
the kinetic energy of an electron ejected from a metal surface? 1.increasing the wavelength of the light
striking the surface 2.increasing the frequency of the light striking the surface 3.increasing the number of
photons of light striking the surface
Answer:

2

, Question:
Speed of light is proportional to wavelength and frequency. ( c= wavelength x frequency)
Answer:

directly

Question:
What is Planck's equation?
Answer:

E = wavelength x Plancks constant (6.63x10^-34 J/sec)

Question:
What is photoelectric effects?
Answer:

certain metals emit electrons when hit with light. light must exceed a threshold of energy before electrons
are emitted with kinetic energy.

Question:
What is electromagnetic radiation also known as?
Answer:

light

Question:
The of a photon of light is proportional to its frequency and proportional to its wavelength.
Answer:

Energy, directly, inversely

Question:
Compared to 300 nm light, 700 nm light has... A. higher frequency B. lower frequency C. lower energy
D. greater intensity
Answer:

B and C