Light as a Particle and Wave

The wave-particle duality of light describes light as...

• a wave only
• a particle only
• both a wave and a particle
• neither a wave nor a particle

Tags

NGSS.HS-PS4-3

Only the wave theory of light offers an explanation for the ability of light to exhibit...

• diffraction.
• reflection.
• photoluminescence.
• illumination.

Tags

NGSS.HS-PS4-3

1 eV is equal to

• 1.6 × 10^-19 J
• 2.0 × 10^-20 J
• 3 J
• 4 J

Which wave has a greater frequency?

• A
• B

Tags

NGSS.HS-PS4-1

When the frequency of a wave increases, what happens to the wavelength?

• The wavelength is not directly affected by the frequency of a wave.
• The wavelength increases.
• The wavelength decreases.
• More specific information is needed to form a conclusion about the wavelength.

Tags

NGSS.HS-PS4-1

The relationship between wavelength and frequency is λ=c/f.  Calculate the wavelength of light that has a frequency of 5.2 x 10¹² 1/s. The speed of of light is 3.0x 10⁸ m/s.

• 5.8 x 10 ^-5 m
• 5.8 x 10 ^-7 m
• 5.19 x 10 ¹⁴ m
• 1.56 x 10 ²³ m

Tags

NGSS.HS-PS4-1

What does particle- wave duality mean?

• Both Light and Matter have particle-like and wavelike properties at the same time

• Particles and waves both work on objects

Tags

NGSS.HS-PS4-3

Wave -particle duality is supported by...

• electrons behaving as particles with ordinary matter

• electrons behaving as waves when travelling through space

• the photo electric effect

• all of the above

Tags

NGSS.HS-PS4-3

Experiments on which of the following suggested the wave nature of electrons?

• electron diffraction by a crystalline material

• β⁻ decay

• line spectra of atoms

• the photoelectric effect

Tags

NGSS.HS-PS4-3

What did Louis De Broglie discover?

• Wave nature of electrons

• particle nature of waves

• wave nature of light

• Particle nature of electrons

Tags

NGSS.HS-PS4-3