Explanation

In projectile motion, the vertical and horizontal components are treated separately.

The horizontal motion is uniform (constant velocity), while the vertical motion is subject to gravitational acceleration.

Explanation

The body is covered by a glandular epithelial envelope called a mantle

They secrete a calcareous shell

Explanation

The transfer of naked genetic material from one cell to another that can alter the genetic makeup of the recipient cell is termed Transformation.

In bacterial genetics, transformation refers to the process by which bacteria take up free DNA from their environment and incorporate it into their genome.

Explanation

Explanation

In fact, at least 75 percent of flowering plants are pollinated by insects and animals, including:

bees,

butterflies,

hummingbirds,

moths,

and bats.

Explanation

In Riccia sporophyte is embedded.

The spores are formed inside the sporophyte.

The spores are dispersed by the decay of surrounding thallus tissue.

The spore is the first cell of gametophytic

Explanation

v∝ n/Z

​where n= orbit's number

So, the velocity of the electron will be maximum in Bohr's first orbit

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ND2-2-2023

Explanation

Lasers operate on the principle of stimulated emission, proposed by Einstein.

In stimulated emission, an incoming photon stimulates an excited atom to drop to a lower energy level, releasing a new photon.

This new photon has:

• Same energy
• Same wavelength
• Same polarization
• Same phase and direction
• as the photon that stimulated it.

Because of this process, all photons in a laser beam are coherent, monochromatic, and travel in the same direction — a unique property of laser light.

Explanation

The friction between the car's tires and the road provides the necessary centripetal force that keeps the car moving in a circular path.

This frictional force acts towards the center of the circular path, allowing the car to change direction without sliding out.

Explanation

Potassium iodide (KI) is a strong electrolyte because it completely dissociates into ions in solution,

unlike weak acids or bases such as acetic acid or ammonium hydroxide.