Silicon is widely used as a semiconductor material due to its suitable band gap and availability.

Constantan is commonly used for potentiometer wires due to its stable resistance over a range of temperatures.

Constantan is commonly used for potentiometer wires due to its stable resistance over a range of temperatures.

Polaroid is a material specifically designed to polarize light.

Iron is a ferromagnetic material, which means it can be magnetized and retains its magnetic properties.

Copper is a good conductor of electricity due to its low resistance and high conductivity.

Iron is considered a ferromagnetic material, which can be magnetized and retains its magnetism.

Glass can exhibit polarization when light reflects off its surface.

Steel is known for its elastic properties, allowing it to return to its original shape after deformation.

Copper is known for its excellent thermal conductivity, making it the best conductor among the given options.

Sound travels fastest in solids, and steel is a solid material that conducts sound well.

Copper is a good conductor of electricity, while rubber, glass, and wood are insulators.

Sound travels fastest in solids like steel due to closely packed molecules.

Steel typically has a much higher Young's modulus compared to rubber, wood, and plastic.

Steel has a much higher Young's modulus compared to rubber, wood, and plastic, indicating it is much stiffer.

Sound travels fastest through solids like steel due to closely packed molecules.

A diagonal matrix is one where all off-diagonal elements are zero. The matrix [[1, 0], [0, 2]] is a diagonal matrix.

A zero matrix is one where all elements are zero. The matrix [[0, 0], [0, 0]] meets this criterion.

An identity matrix has 1s on the diagonal and 0s elsewhere. The matrix [[1, 0], [0, 1]] fits this definition.

An orthogonal matrix is defined as a matrix whose transpose is equal to its inverse.

A matrix is not invertible if its determinant is zero. The matrix [[0, 1], [0, 0]] has a determinant of 0.

A symmetric matrix is one that is equal to its transpose. Matrix B is symmetric because B = B^T.

Mean is a measure of central tendency, not dispersion.

Range is affected by extreme values as it is calculated as the difference between the maximum and minimum values.

Zinc is used as the anode in a Daniell cell.

Aluminum is commonly used as an anode in electrolysis due to its high reactivity.

Copper cannot be used as an anode in a galvanic cell because it is less reactive than zinc.

Gold has the highest standard reduction potential among the given metals.

Gold is highly resistant to corrosion, which is why it is often used in jewelry and electronics.

Gold is known to be the least reactive metal, making it resistant to corrosion and oxidation.