Explanation

Explanation

Shock absorbers reduce vibrations from road bumps.

They contain damping mechanisms (usually hydraulic fluid) that dissipate energy.

This reduces amplitude over time, unlike undamped oscillations.

Oscillations are not externally forced, so not forced oscillations.

Therefore, shock absorbers demonstrate damped oscillations.

Last updated question 25 feb 2026

Explanation

Explanation

Explanation

• Fermi-Dirac statistics applies to fermions (particles with half-integer spin).
• Pauli exclusion principle: No two fermions can occupy the same quantum state.
• Occupation probability is between 0 and 1, never infinite.
• Chemical potential (Fermi energy) is not always zero; it depends on temperature and particle density.
• Therefore, the key feature is single occupancy per quantum state.

Last updated question 25 feb 2026

Explanation

Explanation

• A wave transmits energy from one place to another
• Waves are disturbances that propagate through a medium.
• Particles of the medium oscillate around equilibrium but do not travel with the wave.
• The motion of particles transfers energy, not matter.
• Energy is carried in the form of kinetic and potential energy of oscillating particles.

Last updated question 25 feb 2026

Explanation

Work is a scalar quantity.

While it is calculated as the dot product of two vectors (force and displacement),

it only has magnitude and no inherent direction. 

Explanation

• Standard equation of simple harmonic motion:

$$x=A\cos (\omega t+\varphi )$$

• A = amplitude

• ω = angular frequency

  
  

  Last updated question 25 feb 2026

Explanation

∣A∣=√(6)2+(−8)2

=√(36+64)

= √(100)

= 10