Explanation

The SI unit of electric charge is the coulomb, represented by the symbol C.

One coulomb is the amount of charge that passes through a conductor carrying one ampere of current for one second.

It's also equal to the charge of about 6.24 quintillion electrons or protons.

Explanation

Frequency (f) is inversely proportional to wavelength (λ):

f ∝ 1/λ => f = k/λ => k = fλ

Given: f1 = 100 kHz, λ1 = 3000 m; λ2 = 500 m

k = f1λ1 = f2λ2

100 kHz × 3000 m = f2 × 500 m

f2 = (100 kHz × 3000 m) / 500 m

= 600 kHz

Explanation

Explanation

Sodium chloride (NaCl), commonly known as table salt.

It is the main salt dissolved in seawater.

Explanation

Intel Corporation is an American multinational technology company headquartered in Santa Clara, California.

Formerly: NM Electronics (1968)

Founded: July 18, 1968

Founders: Gordon Moore and Robert Noyce

Headquarters: Santa Clara, California, U.S.

Explanation

Ganymede is the largest and most massive moon of Jupiter and in the entire Solar System,

With a diameter of about 5,270 kilometers (3,270 mi).

It is even larger than the planet Mercury.

Explanation

The major cause of ocean acidification is the absorption of excess atmospheric carbon dioxide CO2 into the ocean,

Primarily from human activities like burning fossil fuels, leading to a drop in pH (increased acidity).

Explanation

Talus cones are made through the continuous accumulation of loose, angular rock fragments at the base of a steep cliff or mountain slope. The process involves the physical and chemical weathering of the rock face above, followed by the transport of the debris downslope primarily by gravity (mass wasting). 

Explanation

Galvanometer works on electromagnetic principles, where electric current produces a magnetic field.

The interaction between magnetic field and coil causes the needle to deflect, allowing current measurement.

A galvanometer measures small currents.

To measure larger currents, a low resistance (called a shunt) is connected in parallel, converting it into an ammeter.

Explanation

When a meteoroid enters Earth’s atmosphere, it burns and becomes a meteor (shooting star).

If it survives the burn and lands on Earth, it is called a meteorite.