General Ability NDA/NA Solved Paper 2020-I (101-150)

The filament is the part ofthe light bulb that produces light. Filaments in incandescent light bulbs are made of tungsten. Whenever an electric current goes through the filament, the filament glows.

The reason tungsten is used is because it has the highest melting temperature of any element at 3600K. For a typical incandescent light bulb,
the Tungsten filament operates at approximately 2500 Celsius. Hence, the filaments are made of tungsten.

Let R' be the equivalent resistance of two resistors. As they are connected in parallel

A watt-hour (Wh) is a unit of energy; it's a way to measure the amount of work performed or generated. Household appliances and other electrical devices perform "work" and that requires energy in the form of electricity.

The joule (symbol J) is the SI unit of energy-a measure of the capacity to do work or generate heat. Newton-Meter (N-m) is a unit of energy. One joule equals the work done (or energy expended) by a force of one newton (N) acting over a distance of one meter (m). SI unit for force is Newton (N).
IN=1 kg.m/s²
Thus, kg.m/s² is the unit of Force not energy.

The unidentified nuclear region of the cell is called nucleoid. The prokaryotic cell lacks chromosomes and nucleolus or nuclear membrane and nucleoplasm remains undifferentiated from the cytoplasm. The prokaryotic cells lack true nucleus and a circular DNA lies naked in the cytoplasm.

Vascular plants have up to three types of supporting tissue: The collenchyma, a tissue of living cells, the sclerenchyma, a tissue of nearly always dead cells, and. the vascular tissue consisting of both living and dead cells.

As cartilage is a structural component of our body act as connective tissue which is not required in the urinary bladder. But nose, ear, and larynx have many bones which
need these connecting tissues because they are composed of many bones.

According to Kepler's law of planetary motion,
T² α R³
Therefore, the ratio of the time period is given by,