Questions

The hertz (Hz) is defined as one cycle per second and is a SI unit of frequency. Here kilohertz is also a unit of frequency of waves and is defined as 1000 cycles per second. Radio waves are measured in kilohertz (KHz).

Wireless transmission can be done via any of the Infrared waves, Radio waves or Microwaves.

We know that All compounds are molecules, but not all molecules are compounds.

Water is a molecule because it is made from atoms that have been chemically combined. It is also a compound because the atoms that make water are not all the same - some are oxygen and some are hydrogen.

Hence, Water is a molecule and a compound.

Except pineapple remaining all three are types of apples.

Pineapple is what kind of apple isn't an apple.

World Press Freedom Day is observed on 3 May every year.

This year’s theme is “Critical Minds for Critical Times: Media’s role in advancing peaceful, just and inclusive societies”.