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Telecommunications and Human Biology

Telecommunications

Exploring the intersection of telecommunication technology and human physiological health.

health technology science

12 Questions Medium Ages 5+ Oct 28, 2026

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About this Study Set

This study set covers Telecommunications through 12 practice questions. Exploring the intersection of telecommunication technology and human physiological health. Every question includes the correct answer so you can learn as you go — pick any format above to get started.

Questions & Answers

Browse all 12 questions from the Telecommunications and Human Biology study set below. Each question shows the correct answer — select a study format above to practice interactively.

1 What is the primary type of electromagnetic radiation emitted by mobile phones, which is classified as non-ionizing?

A Gamma rays
B X-rays
C Radiofrequency fields
D Ultraviolet radiation

2 According to the International Agency for Research on Cancer (IARC), radiofrequency electromagnetic fields are categorized as what?

A Group 1: Carcinogenic to humans
B Group 2B: Possibly carcinogenic to humans
C Group 3: Not classifiable as to its carcinogenicity
D Group 4: Probably not carcinogenic

3 Which part of the human body is most likely to absorb the highest amount of radiofrequency energy during a mobile phone call?

A The liver
B The hands
C The brain
D The feet

4 What is the unit of measurement used to quantify the rate at which the human body absorbs radiofrequency energy from mobile devices?

A Specific Absorption Rate (SAR)
B Decibels (dB)
C Hertz (Hz)
D Lumens (lm)

5 Which biological effect is the only established mechanism through which radiofrequency radiation interacts with human tissue?

A Genetic mutation
B Thermal heating
C Cellular dehydration
D Neurological stimulation

6 At what frequency range do typical 5G telecommunication networks operate, which are largely blocked by the outer layers of human skin?

A Extremely Low Frequency (ELF)
B Millimeter waves
C Ionizing ultraviolet spectrum
D Infrared thermal spectrum

7 What is the standard safety limit for mobile phone SAR levels in many countries, typically expressed in watts per kilogram (W/kg) of tissue?

A 1.6 to 2.0 W/kg
B 5.0 to 10.0 W/kg
C 0.1 to 0.5 W/kg
D 10.0 to 20.0 W/kg

8 Which human sensory organ has been studied for potential effects from high-intensity radiofrequency exposure, though results remain inconclusive regarding long-term harm?

A The kidneys
B The ocular lens
C The pancreas
D The spleen

9 What telecommunications-related condition is often associated with the frequent use of mobile devices due to prolonged neck flexion?

A Carpal tunnel syndrome
B Text neck
C Tinnitus
D Restless leg syndrome

10 Radiofrequency signals from base stations typically decrease in power density according to which physical law as distance from the source increases?

A Inverse-square law
B Hooke's law
C Newton's third law
D Ohm's law

11 What is the primary method by which modern telecommunications devices (like smartphones) minimize the amount of radiation emitted by automatically adjusting power levels?

A Pulse-width modulation
B Adaptive Power Control (APC)
C Phase-shifting
D Frequency hopping

12 Which of the following is an established physiological effect of excessive blue light exposure from telecommunication screens on the human circadian rhythm?

A Increased production of melatonin
B Suppression of melatonin secretion
C Permanent retinal detachment
D Enhanced long-term memory formation

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