Fig. 6.1 shows apparatus that is used to demonstrate some effects of the transfer of energy by radiation. glass bulb painted shiny glass bulb heater matt black- glass tube plass tube air pir liquid Fig. 6.1 The glass bulb painted matt black, the shiny glass bulb and the spaces above the liquid in the tube all contain air. The heater glows red when switched on. The heater is the same distance from each bulb. (a) State the two types of radiation that are emitted by the heater. 2 (b) Before the heater is switched an, the liquid levels in the glass tube are the same. State and explain any changes in the liquid levels that take place when the heater is switched on.

Q: One style of solar collector panel for hot water consists of a sheet of glas on top, a sheet of…

A: A sunlight based solar collector plate commonly comprises of a huge warmth engrossing plate,…

Q: The microwave is rated at 900 W. If all the power is transferred directly into the food being…

A: Given Mass of water is given as m=200 g=200×10-3 kg Initial temperature is ti=10°C Final temperature…

Q: What is the frequency of infrared light of 1.0*10^-4 wavelength?

A: Given that-Wavelength, λ=1×10-4 mWe know that-frequency, f=cλwhere, c is velocity of…

Q: If an electromagnetic wave has a frequency of 1.5 × 1010 s-1, it falls in the ______ region of the…

A: The frequency and wavelength of an electromagnetic wave in free space are related as c=νλc is the…

Q: 5. When heating a metal rod, it initially does not change colour but radiates heat. A continues, the…

A:

Q: For the objects below use Wein’s Displacement Law to calculate the wavelength that the object will…

A: Step 1: Step 2: Step 3: Step 4:

Q: Why are infrared waves often called heat waves?

A:

Q: The temperature of the Sun's surface is approximately 5800K. On the assumption that the human eye…

A: Electromagnetic spectrum involves different radiations from the lowest to the highest frequency…

Q: Light from a 50 W flashlight is incident on a mirror with 100% reflectivity. If the light covers 1…

A: Given:  Power, P = 50 Watt  Area, A = 1 m2

Q: What is the spectrum of radiation from Longer to shorter wavelengths?

A: The range of the wavelength of electromagnetic radiation is called the electromagnetic spectrum. It…

Q: Our sun's blackbody temperature is about 6000 K and its peak radiation occurs at a wavelength of…

A: We can apply Wien's law.

Q: A physics instructor grew up with a 3 second rule for lightning bolts, to allow estimation of the…

A: The speed of light is 3×108 m/s. Thus, when we see a lightning at a distance, its almost…

Q: What is the difference between the rates of radiation emitted by the surface and the radiation.

A: Rate of radiation and radiation

Q: When you look at a shirt and it is blue…. WHY IS IT BLUE? What is being absorbed and what is being…

A: What colour our eye see is the reflected colour which an object reflects. Rest of the colours are…

Q: How are Infrared and Visible photons different from one another?

A: Electromagnetic waves are the combination of oscillating electric and magnetic fields which are…

Q: What do the characteristics of electromagnetic radiation include? characteristics of neither waves…

A: Explanation-                           Electromagnetic radiation is a form of energy that is…

Q: Heat is defined as energy that is moving from one place to another as a consequence of a temperature…

A: The internal energy may be increased by transferring energy to the object from a higher temperature…

Q: Are ultraviolet rays used to sterilize equipment in hospitals?

A: Given:  Ultraviolet rays

Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.