Electrons are not found in the nucleus; they orbit around it.

Lord Dalhousie introduced the Doctrine of Lapse, which allowed the British to annex any princely state if the ruler died without a male heir.

Chandragupta Maurya founded the Maurya Empire in 322 BCE, marking the beginning of a significant era in Indian history.

Interference is a phenomenon that can be explained by the wave nature of light, as it involves the superposition of light waves.

All of the mentioned phenomena (photoelectric effect, Compton effect, and diffraction) demonstrate the wave-particle duality of light.

Diffraction is a phenomenon that leads to interference patterns, as it involves the bending of waves around obstacles.

Water droplets on a leaf demonstrate surface tension, as the cohesive forces between water molecules create a 'skin' on the surface.

Surface tension is responsible for capillary action, allowing liquids to rise in narrow tubes.

Viscosity describes the resistance of a fluid to flow, which is a key factor in fluid flow resistance.

Conduction is a mode of heat transfer and is not a characteristic of wave motion, while reflection, refraction, and diffraction are.

Conduction is a process of heat transfer and is not a characteristic of wave phenomena.

Floating of heavy objects is not a consequence of surface tension; it is due to buoyancy, while the other options are directly related to surface tension.

Prism dispersion involves refraction and not total internal reflection. The other options are phenomena that utilize total internal reflection.

Conduction is a mode of heat transfer and is not associated with wave phenomena.

The photoelectric effect is explained by quantum mechanics and particle nature of light, not by wave optics.

Floating of heavy objects is not related to surface tension; it is related to buoyancy. The other phenomena are directly influenced by surface tension.

Capillary action is primarily due to surface tension, as it allows liquids to rise in narrow tubes against gravity.

Refraction is the bending of light as it passes from one medium to another due to a change in its speed.

The blue color of the sky is primarily due to Rayleigh scattering, which scatters shorter wavelengths of light more than longer wavelengths.

The formation of a rainbow is primarily due to the refraction and dispersion of light in water droplets.

Existentialism focuses on individual experience and the subjective interpretation of existence and truth.

The phrase 'the main point' accurately captures the essence of 'the crux of the matter'.

The Chola dynasty is noted for its extensive development of irrigation canals which significantly enhanced agricultural productivity.

All of the mentioned groups (Angiosperms, Gymnosperms, and Pteridophytes) exhibit alternation of generations in their life cycles.

Pteridophytes, like ferns, exhibit an alternation of generations with both gametophyte and sporophyte stages.

The distance from the origin to a point (x, y) is given by √(x² + y²). The point (0, 1) has a distance of 1, which is the smallest.

Substituting (0, -4) into the equation gives 4(0) - 5(-4) + 20 = 0, which is true.

Substituting x = 2 into the equation y = 2(2) + 1 gives y = 5, so the point (2, 5) lies on the line.

Substituting x = 1 into the equation gives y = 1^2 - 4 = -3, so the point (1, -3) lies on the parabola.

Land Reforms were aimed at redistributing land to the landless and ensuring equitable access to resources, thus promoting inclusive growth.