Which of the following exhibits wave-particle duality?

The correct answer is C: Both light and electrons. De Broglie proposed that all matter exhibits wave-particle duality. Both light (photons) and electrons show properties of both waves and particles, confirmed by experiments like double-slit interference and photoelectric effect.

A transformer has a primary coil with 500 turns and secondary coil with 100 turns. If the primary voltage is 220V, what is the secondary voltage?

The correct answer is B: 44 V. # Transformer Voltage Calculation A transformer changes voltage based on the ratio of turns in its primary and secondary coils. **Step 1: Identify the Transformer Equation** For an ideal transformer, the voltage ratio equals the turns ratio between the primary and secondary coils. $$\frac{V_{\text{p

The osmotic potential of a solution is directly related to:

The correct answer is B: Solute concentration and temperature. Osmotic potential (Ψs) = -iCRT, where it depends on solute concentration (C) and absolute temperature (T).

Which of the following has the highest refractive index?

The correct answer is C: Diamond. Refractive indices: Air ≈ 1, Water ≈ 1.33, Glass ≈ 1.5, Diamond ≈ 2.42. Diamond has the highest refractive index among these options.

The transpiration coefficient (amount of water transpired per unit dry matter produced) is lowest in:

The correct answer is B: C4 plants. # Transpiration Coefficient in Different Plant Types The transpiration coefficient measures water loss efficiency relative to biomass production, with lower values indicating more water-efficient plants. **Step 1: Understanding Transpiration Coefficient** The transpiration coefficient is defined as