The speed of sound depends on the elasticity and density of the medium. Sound travels fastest in solids because the particles are more closely packed and the material has a higher elastic modulus compared to liquids and gases. Steel, being a solid, allows sound to travel significantly faster than in water or air, and sound cannot travel through a vacuum at all.

The speed of sound in air at 0°C is approximately 331 m/s. The notation 'ms-1' represents meters per second, which is the correct SI unit for velocity. The other options use incorrect units or incorrect dimensional notation for speed.

The speed of sound in an ideal gas is given by the formula v = sqrt(gamma * P / rho). Since density (rho) is directly proportional to pressure (P) at a constant temperature (from the ideal gas law PV=nRT), the ratio P/rho remains constant. Therefore, the speed of sound is independent of pressure, resulting in a ratio of 1:1.

Electromagnetic waves are oscillations of electric and magnetic fields that can travel through a vacuum. Light, radio waves, and microwaves are all part of the electromagnetic spectrum. Sound waves, however, are mechanical waves that require a physical medium, such as air, water, or solids, to propagate through particle vibration.

Amplitude represents the maximum displacement of particles in a medium from their equilibrium or central position as the wave passes through. It is a measure of the wave's intensity or energy, distinct from wavelength or frequency.

Sound waves are mechanical waves that require a material medium (solid, liquid, or gas) to travel. In contrast, electromagnetic waves, including light and thermal radiation, can propagate through a vacuum because they consist of oscillating electric and magnetic fields.

Sound is a mechanical wave that requires a material medium, such as a gas, liquid, or solid, to transmit vibrations from one point to another. In a vacuum, there are no particles to collide and transfer energy; therefore, sound waves cannot travel through it.

Using the wave equation f = v / λ, where v = 300 m/s and λ = 0.3 m, the frequency f is 1000 Hz (1 kHz). Since the human auditory range is typically 20 Hz to 20,000 Hz, a 1 kHz wave falls within the audible range.

Sound is a mechanical wave that requires a material medium, such as air, liquid, or solid, to propagate through the vibration of particles. Since the Moon lacks an atmosphere and is essentially a vacuum, there are no particles available to transmit sound waves, making it impossible for sound to travel.

SONAR stands for Sound Navigation and Ranging. It is a technique that uses sound propagation, usually underwater, to navigate, measure distances, communicate with, or detect objects on or under the surface of the water, such as other vessels.