Home
Class 12
PHYSICS
Speed of thermal radiation is equal to...

Speed of thermal radiation is equal to

A

the speed of light

B

less then speed of light

C

greater then speed of light

D

None of the above

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding the speed of thermal radiation, we can follow these steps: ### Step-by-Step Solution: 1. **Understanding Thermal Radiation**: - Thermal radiation refers to the electromagnetic radiation emitted by all objects based on their temperature. This includes infrared radiation, which is a significant part of thermal radiation. 2. **Identifying the Speed of Electromagnetic Waves**: - All forms of electromagnetic radiation, including thermal radiation, travel at the same speed in a vacuum. This speed is known as the speed of light. 3. **Speed of Light**: - The speed of light in a vacuum is approximately \(3 \times 10^8\) meters per second (m/s). This is a fundamental constant in physics. 4. **Conclusion**: - Therefore, the speed of thermal radiation is equal to the speed of light in a vacuum. ### Final Answer: The speed of thermal radiation is equal to the speed of light. ---
Promotional Banner

Similar Questions

Explore conceptually related problems

Thermal radiations

Nature of thermal radiations is similar to the nature of -

Assertion : Thermal radiations can propagate in vacuum . Reason : Similar to light wave , thermal radiation is also electroamgnetic wave .

The wavelength range of thermal radiation is

The wavelength range of thermal radiation is

The velocity of thermal radiations (V) is related to the velocity of light ( C) as