Explanation

• Humidity is the measure of the amount of moisture (water vapour) in the air.
• A hygrometer is used to measure relative humidity.
• A psychrometer is an example of a hygrometer.
• Relative humidity tells us the ratio of water vapour present in the air compared with the maximum amount the air can hold at a given temperature.
• Humidity is commonly expressed as a percentage (%).

Last verified on 23-08-2026

Explanation

• Physiognomy is the study of a human face and its features to understand character or personality.
• It links facial expressions and structure with behavior traits.

Additional information:

• Horology → Study of time and clocks
• Sinology → Study of Chinese language & culture

Last verified on 14-06-2026

Explanation

• The splitting of light into its constituent colors is called dispersion.
• White light splits into seven colors (VIBGYOR).
• It occurs when light passes through a prism.
• Different colors bend at different angles.
• This creates a spectrum of colors.

Last verified on 08-06-2026

Explanation

• Meaning: Extremely close or side-by-side.
• Usage: Used for crowded spaces, close proximity, or adjacent items.

Last updated question by NA on 07 May 2026

Explanation

1 Volt (V) is equal to 1 Joule per Coulomb (JC^-1).

Explanation

• An equation is a statement that expresses the equality of two mathematical expressions, containing a finite number of unknowns, and is true only for specific values of these unknowns.
• Equations are often denoted by the symbol "=" and are used to describe a relationship between variables.

Explanation

Hydrogen is the most abundant element in the universe.

it is about 75 percent of its normal matter and was created in the Big Bang.

Additional information:

Oxygen is the most abundant element in the earth`s crust.

Calcium is the most abundant mineral in the human body.

Explanation

• Attenuation refers to the decrease in strength or intensity of a signal as it travels through a medium or is processed by a system.
• This can occur due to various factors such as resistance, impedance, or absorption, and can affect the quality and fidelity of the signal.

Explanation

• "En masse" is a French phrase that means "all together" or "as a whole".
• It is used to describe a group of people or things doing something simultaneously or in a collective manner.
• Example: "The crowd moved en masse to the exit when the fire alarm sounded."

Explanation

• In binary notation, the decimal number 9 is represented as 1001.
• Here's the binary conversion:
• 9 = 1 × 2^3 + 0 × 2^2 + 0 × 2^1 + 1 × 2^0
• = 1 × 8 + 0 × 4 + 0 × 2 + 1 × 1
• = 8 + 0 + 0 + 1
• = 1001 (in binary)