Physics Light
The wave theory of light is associated with:
Christiaan Huygens
In a Young's double-slit experiment the distance between the slits increases. What happens to the separation between the fringes?
Decreases
A light beam spreads out when it travels through a narrow slit. Which of the following can explain this phenomenon?
Diffraction
The particle theory of light can explain the following phenomena:
Dispersion, Reflection, Refraction
Maxwell's Equations describe the integration of which two fundamental forces?
Electricity and Magnetism
Maxwell's Equations describe the integration of which two fundamental forces?
Electricity and magnetism
When light crosses a boundary between air and water, the following quantity of light remains the same:
Frequency
A diffraction grating can be used to
Identify an element by its optical spectra
In Young's double-slit experiment, a series of bright and dark lines was observed. Which of the following principles is responsible for this phenomenon?
Interference
A blue beam of light falls on two narrow slits producing an interference pattern on a screen. If instead of blue light, a red beam of light was used in the same experiment, which changes to the interference pattern can be observed?
Interference fringes move further away from the central maximum.
n a double-slit experiment, the distance between the slits is doubled. What happens to the separation between the two adjacent maxima?
Is cut in half
Allowing only the Electric Field component vibrating in one, specific plane of an electromagnetic wave through a special filter is called:
Polarization
Which of the following is the correct order of electromagnetic radiation with increasing frequency?
Radio Waves, IR Radiation, Visible Light, UV Radiation, X-Rays, γ -Rays
Which ray will be refracted the least in a prism?
Red
A light beam changes its direction when it strikes a boundary between air and water. Which of the following is responsible for this phenomenon?
Refraction
n a Young's double-slit experiment, an interference pattern is observed on a screen. The apparatus is then submerged into water. What is the change in the interference pattern?
The fringes move closer to the central maximum
In a single-slit experiment, as a result of the interference of a laser beam, a student observes a set of red and dark concentric circles. When he increases the width of the slit, what happens to the interference pattern?
The separation between the circles decreases
Colors in a soap bubble or in an oil slick on the road are caused by:
Thin Film Interference
Isaac Newton described light as...
Tiny particles
Light travels fastest in
Vacuum
Which of the following theories can explain the bending of light behind obstacles forming a bright spot inside the shadow?
Wave Theory of Light
The colors of a soap bubble or oil slick are due to __________.
thin film interference
Two coherent light waves approaching a certain point on a screen produce a constructive interference pattern. The optical extra distance traveled by one of the waves is:
λ
