SAMEER Research Scientist Interview Questions and Answers

Noise is measured practically using sound level meters that measure sound pressure levels in decibels.

• Sound level meters are used to measure noise levels in decibels

• The measurement is taken at a specific location and time

• The meter should be calibrated before use

• The measurement is affected by the distance from the source of noise

• The measurement is also affected by the frequency of the noise

• Examples of noise sources incl...read more

Antenna is a device that transmits or receives electromagnetic waves. Gain and directivity are related to the ability of an antenna to focus energy in a particular direction.

• Antenna is a transducer that converts electrical signals into electromagnetic waves and vice versa

• Gain is the measure of the ability of an antenna to direct energy in a particular direction

• Directivity is the measure of the concentration of energy i...read more