What type of waves are those in which the direction of the oscillations is parallel to the direction of energy transfer?

• Transverse waves

• Longitudinal waves

• Progressive waves

• Stationary waves

What is the symbol used to represent wavelength?

• Lambda

• Beta

• Gamma

• Alpha

What is the unit of frequency?

• Newton

• Hertz

• Pascal

• Joule

What is the equation for wave speed?

• V = f * Lambda

• V = f - Lambda

• V = f + Lambda

• V = f / Lambda

What is the phenomenon called when light waves move from one medium to another and change speed?

• Refraction

• Reflection

• Diffraction

• Dispersion

What is the unit of refractive index?

• Meter

• Dimensionless

• Radian

• Second

What is the equation for total internal reflection?

• sin Theta c = N1 / N2

• sin Theta c = N2 / N1

• cos Theta c = N2 / N1

• cos Theta c = N1 / N2

What is the power of a lens equal to?

• Lens diameter

• Reciprocal of focal length

• Refractive index

• Focal length

What is the phase difference between two points that are completely out of phase?

• 270 degrees

• 180 degrees

• 90 degrees

• 0 degrees

What is the equation for the fringe spacing in Young's double-slit experiment?

• W = Lambda * d / s

• W = Lambda + d / s

• W = Lambda / d * s

• W = Lambda - d / s