# Which object emits the radiation at the shortest wavelengths?

## Which object emits the radiation at the shortest wavelengths?

Electromagnetic radiation with the shortest wavelengths, no longer than 0.01 nanometer, is categorized as gamma rays (1 nanometer = 10–9 meters; see Units Used in Science).

## What determines the type of radiation emitted by an object?

All objects with a temperature greater than absolute 0 emit electromagnetic radiation, which is commonly called the object’s thermal emission. The temperature of the radiating body determines the intensity and characteristics of the radiation it emits.

## Is radiation affected by temperature?

All objects actually emit radiation if their temperature is greater than absolute zero. This law (expressed mathematically as E = σT4) states that all objects with temperatures above absolute zero (0K or -273°C or -459°F) emit radiation at a rate proportional to the fourth power of their absolute temperature.

1000 K

## What can you do to protect yourself from this radiation?

1. Close windows and doors.
2. Take a shower or wipe exposed parts of your body with a damp cloth.
3. Drink bottled water and eat food in sealed containers.

## Which of the following reason does not affect radiation between two parallel bodies?

Which of the following reason does NOT affect radiation between two parallel bodies? Explanation: The angle of vision does not affect radiation between two parallel bodies. But, it is an important factor when it comes to curved surfaces.

## What is the rule of radiation to energy?

The total radiant heat energy emitted by a surface is proportional to the fourth power of its absolute temperature (the Stefan–Boltzmann law). As a rule of thumb, approximately 35 percent of the total energy yield of an airburst is emitted as thermal…

## Which of the following is the best example of radiation?

• ultraviolet light from the sun.
• heat from a stove burner.
• visible light from a candle.
• x-rays from an x-ray machine.
• alpha particles emitted from the radioactive decay of uranium.
• sound waves from your stereo.
• microwaves from a microwave oven.