The instrument used to measure atmospheric humidity is MCQ with Answer and Explanation

Explanation:
Latent heat of vaporisation, 540 cal/g.

Explanation:
Ionosphere contains ions and free electrons, reflects radio waves back to Earth, enabling long-distance radio communication. Used in skywave propagation. Troposphere weather layer.

Explanation:
The seven fundamental SI units are: metre (m), kilogram (kg), second (s), ampere (A), kelvin (K), mole (mol), and candela (cd). Candela is the unit of luminous intensity. Newton, joule, and pascal are derived units. Newton = kg·m/s², joule = kg·m²/s², pascal = kg/(m·s²). Hence, candela is a fundamental unit. Exam tip: Remember the acronym ‘MKS A K M C’ for the seven base units.