Physics Final C

What is the name of the spectrum that shows the specific wavelengths of light emitted by an atom?

• Absorption spectrum

• Emission spectrum

• Continuous spectrum

• Reflection spectrum

What is the main cause of the different colors seen in the emission spectra of different elements?

• The temperature of the element

• The arrangement of electrons in the atom

• The size of the atom

• The mass of the atom

What type of image is formed by a plane mirror?

• Real and inverted

• Virtual and upright

• Real and upright

• Virtual and inverted

What happens to light when it passes from air into a glass lens?

• It reflects completely

• It refracts (bends)

• It disappears

• It speeds up

What is the photoelectric effect?

• The bending of light as it passes through a lens

• The emission of electrons from a material when light shines on it

• The splitting of white light into colors

• The reflection of light from a mirror

Which model explains the photoelectric effect?

• Wave model of light

• Photon model of light

• Particle model of matter

• Atomic model

What is emitted from a metal surface during the photoelectric effect?

• Protons

• Neutrons

• Electrons

• Photons

Which color of visible light has the shortest wavelength?

• Red

• Green

• Blue

• Violet

Which of the following best describes the image formed by a convex lens when the object is placed farther than twice the focal length?

• Virtual, upright, and larger

• Real, inverted, and smaller

• Virtual, inverted, and smaller

• Real, upright, and larger

What is the basic unit of light in the photon model?

• Atom

• Electron

• Photon

• Molecule