Sonar technology is based on the reflection of sound waves to detect objects underwater.

The Doppler effect is the change in frequency (and wavelength) of a wave in relation to an observer moving relative to the wave source.

Lasers operate on the principle of stimulated emission, where an incoming photon stimulates an excited electron to emit a photon of the same energy, phase, and direction.

A polarimeter measures the angle of rotation of polarized light as it passes through a sample, which can indicate the concentration of optically active substances.

Transformers operate on the principle of electromagnetic induction, where a changing magnetic field induces an electromotive force (EMF) in a coil.

Electric generators operate on the principle of electromagnetic induction, converting mechanical energy into electrical energy.

Electric motors operate on the principle of the Lorentz force, where a current-carrying conductor in a magnetic field experiences a force that causes it to rotate.

3D movie glasses use polarization to filter different images for each eye, creating a three-dimensional effect.

A hydraulic lift works on Pascal's law, which states that pressure applied to a confined fluid is transmitted undiminished in all directions.

Sonar works on the principle of reflection of sound waves to detect objects underwater.

Transformers work on the principle of electromagnetic induction, where a changing magnetic field induces an electromotive force (EMF) in a coil.

An electric generator works on the principle of electromagnetic induction, where mechanical energy is converted into electrical energy by moving a conductor through a magnetic field.

An electric motor operates on the principle of the Lorentz force, which states that a current-carrying conductor in a magnetic field experiences a force.

A potentiometer measures voltage by balancing it against a known voltage, allowing for accurate voltage measurements.

The principle of conservation of momentum states that the total momentum of a closed system remains constant if no external forces act on it.

The principle of superposition states that when two or more waves overlap, the resultant displacement is the sum of the individual displacements.

The principle of superposition states that when two or more waves overlap, the resultant displacement is the sum of the individual displacements.

The principle of superposition states that when two or more waves overlap, the resultant wave is the sum of the individual waves.

Nuclear fission is the process in which a heavy nucleus splits into two lighter nuclei, releasing energy in the process.

In multiplication, the result should have the same number of significant figures as the factor with the least significant figures. 3.00 has 3 significant figures and 2.5 has 2 significant figures, so the result should have 2 significant figures: 7.5.

A demodulator's purpose is to convert the modulated signal back to its original baseband form for further processing.

A galvanometer is used to detect the balance condition in a Wheatstone bridge by indicating zero current when balanced.

The galvanometer is used to detect the balance condition by indicating the current flow.

The typical range of human hearing is from 20 Hz to 20 kHz.

The typical range of human hearing is from 20 Hz to 20 kHz.

Using sin(30°) = 0.5, n = 1/sin(30°) = 1/0.5 = 2. Therefore, the refractive index is 2.

Using the formula n = 1/sin(θc), where θc = 30°, we find n = 1/sin(30°) = 1/0.5 = 2.00.

Angular momentum L is given by L = Iω, where ω is the angular velocity.

Bulk modulus is defined as the reciprocal of compressibility, indicating how incompressible a material is.

The relationship is K = C + 273.15, where K is the temperature in Kelvin and C is the temperature in Celsius.