The Doppler effect is primarily due to the change in wavelength as the source moves relative to the observer.

A diffraction grating operates on the principle of interference, where light waves passing through multiple slits create a pattern.

The refractive index n is calculated as n = c/v, which gives n = (3 x 10^8)/(2 x 10^8) = 1.5.

Frequency and wavelength are inversely proportional; as frequency increases, wavelength decreases.

Frequency and wavelength are inversely proportional; as frequency increases, wavelength decreases.

The speed of a wave is given by the formula v = f * λ. Here, v = 500 Hz * 2 m = 1000 m/s.

Refraction is the change in direction of light due to a change in its speed when entering a different medium.

The bending of waves around obstacles is known as diffraction.

Amplitude is defined as the maximum displacement of a wave from its equilibrium position.

The phenomenon that occurs when two waves meet and combine to form a new wave is called interference.

A convex lens is designed to converge light rays to a focal point.

Linear polarization occurs when light waves vibrate in a single plane.

In longitudinal waves, particles of the medium move parallel to the direction of wave propagation.

Polarized light vibrates in one direction, unlike unpolarized light which vibrates in all directions.

A higher pitch sound is heard when the source is moving towards the observer, compressing the sound waves.

A microscope uses a concave mirror and a convex lens to magnify small images.

A telescope typically uses a combination of a concave mirror and a convex lens to gather and focus light.

All of these instruments use refraction to magnify objects.

Diffraction is the bending of waves around obstacles and openings.

Diffraction is the bending of waves around obstacles and openings.

Diffraction occurs when light waves encounter an obstacle or slit that is comparable in size to their wavelength.

Constructive interference occurs when two waves are in phase, resulting in a wave of greater amplitude.

Linear polarization occurs when waves vibrate in a single plane.

Only transverse waves can be polarized, as they oscillate perpendicular to the direction of wave propagation.

Sound waves are mechanical waves that require a medium (solid, liquid, or gas) to propagate.

Sound waves are mechanical waves that require a medium (solid, liquid, or gas) to propagate.