Explanation

Plaster of Paris changes into gypsum on mixing with water 

It is commonly called P.O.P. is calcium sulfate hemihydrate.

The chemical formula of plaster of Paris  is CaSO4.1/2 H2O

Crystals of gypsum are produced when Plaster of Paris is mixed with water 

Gypsum is calcium sulfate dihydrate and a mineral used in cement manufacturing.

It helps in controlling the rate of hardening of the cement. 

Explanation

Tea contains water, tea extract, sugar, and milk, mixed physically.

Its components can be separated, so it is a mixture.

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.