At constant temperature, if the volume of a given mass of the gas is doubled, the density of the gas becomes:

• A) Half
• B) Double
• C) Four times
• D) Remains constant

Which of the following statements accurately describes the relationship between the wavelength (λ) and temperature (T) according to Wien's displacement law?

• A) Undetermined
• B) The wavelength decreases with temperature.
• C) The wavelength increases with temperature.
• D) The wavelength is independent of temperature.

When white light passes through a prism, it splits into ________ colors.

• A) 8
• B) 6
• C) 9
• D) 7

If energy of photon is E, it is equivalent to mass:

• A) c2/E
• B) Ec2
• C) E/c2
• D) Ec

When a substance is heated, its particles:

• A) Become more ordered.
• B) Lose kinetic energy.
• C) Become more random.
• D) Gain potential energy.

An isothermal process for an ideal gas is represented on a p-V diagram by:

• A) A horizontal line
• B) A portion of a parabola
• C) A portion of a hyperbola
• D) A portion of an ellipse

The Light from any ordinary source (such as a flame) is usually:

• A) Plane polarized
• B) Monochromatic
• C) Un-polarized
• D) Circularly polarized

Of the following which might NOT vanish over one cycle of a cyclic process?

• A) The change in the internal energy of the substance
• B) The work done by the substance
• C) The change in pressure of the substance
• D) The change in the temperature of the substance

Huygens’ construction can be used only:

• A) for transverse waves
• B) for light
• C) for all of the above and other situations
• D) for an electromagnetic wave

Which of the following is NOT considered a thermodynamic variable?

• A) Pressure
• B) Volume
• C) Energy
• D) Temperature

Light from some stars shows an apparent change in frequency because of:

• A) Relative motion
• B) Reflection
• C) Di?raction
• D) Interference

In a reversible isothermal process, 600 J of heat is absorbed by a system at a constant temperature of 300 K. The change in entropy (ΔS) for the system is:

• A) ΔS = 180 J/K
• B) ΔS = 20 J/K
• C) ΔS = 2.0 J/K
• D) ΔS = 1.67 J/K

The relationship between the linear and volumetric expansion coefficients is:

• A) β = α3
• B) β = 3α
• C) α = β3
• D) α = 3β

If the temperature of a black body is tripled, how does the power radiated per unit area change according to the Stefan-Boltzmann Law?

• A) Increases by a factor of 9.
• B) Increases by a factor of 81.
• C) Increases by a factor of 27.
• D) Increases by a factor of 3.

The concept of direction is purely:

• A) Absolute
• B) Relative
• C) Relative to the sun
• D) Relative to stars

Ole Rømer estimated the value for the speed of light to be:

• A) 100,000 meters/sec
• B) 225,000 meters/sec
• C) 299,792,458.6 meters/sec
• D) 500,000 meters/sec

The theoretical upper limit for the frequency of electromagnetic waves is:

• A) the greatest x-ray frequency
• B) there is no upper limit
• C) just slightly greater than that of red light
• D) just slightly less than that of blue light

The specific heat of a substance is:

• A) The amount of heat energy per unit mass to raise the substance from its freezing to its boiling point
• B) The amount of heat energy to change the state of one gram of the substance
• C) The amount of heat energy per unit mass to raise the temperature of the substance by1?C
• D) The amount of heat energy per unit mass emitted by oxidizing the substance

According to the kinetic theory of gases, the pressure of a gas is due to:

• A) Average kinetic energy of the molecules
• B) Force of repulsion between the molecules
• C) Change of kinetic energy of molecules as they strike the wall
• D) Change of momentum of molecules as the strike the wall

"LASER" is the abbreviation of:

• A) Light Amplification by the Synthesized Emission of Radiation
• B) Lightwave Amplification by the Stimulated Emission of Rays
• C) Light Amplification by the Stimulated Emission of Radiation
• D) Luminous Amplification by the Stimulated Emission of Rays