Quiz on Particle Nature of Light

Who introduced quantum theory in the 1900s?

• Niels Bohr

• Albert Einstein

• Isaac Newton

• Max Planck

What are the discrete units of energy called according to quantum theory?

• Electrons

• Neutrons

• Quanta

• Photons

What does a blackbody do with incoming radiation?

• Reflects all

• Absorbs all

• Transmits all

• Scatters all

At what temperature does a blackbody emit visible light?

• 500K

• 2000K

• 1000K

• 1500K

What is Planck's equation for radiation energy?

• E = mc^2

• E = hf

• E = λf

• E = h/λ

What is the speed of light in meters per second?

• 3 X 10^8 m/s

• 3 X 10^12 m/s

• 3 X 10^6 m/s

• 3 X 10^10 m/s

What characteristic does a photon NOT have?

• Zero mass

• Carries momentum

• Has charge

• Rest energy

What is the relationship between wavelength and energy?

• Directly proportional

• Inversely proportional

• Exponential

• Independent

What type of light is used in photography dark rooms?

• Red light

• Blue light

• Yellow light

• Green light

What effect does ultraviolet light have compared to visible light?

• Is used for photography

• Has higher energy

• Has longer wavelength

• Causes less sunburn