Human body emits which of the following radiation?
Correct answer: C. Infrared
- A. X-rays
- B. Ultraviolet
- C. Infrared
- D. Gamma rays
Explanation
The human body emits infrared radiation as a result of its temperature. All objects with a temperature above absolute zero (0 Kelvin or -273.15°C) emit electromagnetic radiation, with the wavelength and frequency of the radiation depending on the object's temperature.The human body, with an average temperature of around 37°C, primarily emits infrared radiation. This infrared radiation is what allows us to be detected by infrared cameras and sensors.
Last updated
About Nuclear Physics
Atomic nuclei contain protons and neutrons, with nuclear size, mass defect and binding energy describing their stability. The work covers alpha, beta and gamma decay, decay equations, half-life and decay rate, along with radiation safety and medical applications such as imaging, radiotherapy and tracers.
Practise Nuclear Physics
1,254 free Nuclear Physics MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Physics questions like this
Physics is on 13 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.