How does a microwave oven heat up food even though it emits no thermal radiation?

Q: How many watts will radiated from a spherical black body 15cm in diameter at a temperature of 600…

A: Answer :-  the surface area of the spherical body         A = 4πR2          A = 4 × 3.14 × ( .075 )2…

Q: Give some examples of two types of radiations.

A: Radiation is defined as the energy which travels through space in the form of waves or particles.…

Q: KCL expresses the concept of the conservation of ……………, while KVL expresses the concept of the…

A: KCL expresses the concept of the conservation of charge entering and living a junction. Kirchhoff's…

Q: At 101°K the black body radiation weighs per cubic centimetre... 10A-6 gram O 10^-16 gram

A: Given Temperature (T)=1010  K

Q: Some insects, like bees, can see light of shorter wavelengths than humans can see. What kind of…

A: The arrangement of electromagnetic radiations in the order of decreasing wavelengths or increasing…

Q: Is microwave open an open or closed system? (We're talking about open system, where mass and energy…

A: An open system in thermodynamics is one which interacts with its surroundings in such a way, that…

Q: on at a Javelength of 5000 Å is approaching the earth with a velocity of 1.50× 106 ms-'. Calculate…

A: Here, we calculate the given as follow;

Q: Why are microwave ovens constructed so that they will not operate when the door is open?

A: Microwave oven works on the principle that polar molecule like water vibrates and produces heat when…

Q: s there an electromagnetic spectrometer that uses photoelectron spectroscopy

A: In this question we have to answer about a electromagnetic spectrometer. Please give positive…

Q: The condition under which a microwave oven heats up a food item containing water molecules most…

A: In the presence of microwave, the  water molecules will oscillates and large heat is developed.

Q: Calculate the average wavelength associated with an 150.0 lb athlete who covers 115 m in minute.

A: Given,Speed of athlete, v = 115 m/min = 1.91 m/sMass of athlete, m = 150 lb = 68.03 kg

Q: Give some good effects and bad effects of EM Radiation

A: Electromagnetic Radiation -  Electromagnetic radiation refers to the waves of electromagnetic field…

Q: To measure temperatures, physicists often use the variation of intensity of EM radiation emitted by…

A: Given microwave radiation peaking at λmax= 0.107cm we have to find out the corresponding temperature…

Q: Name the radiation which is used for satellite communication.

A: Microwaves and radio waves are used for communication with satellites. Microwaves pass straight…

Q: To what temperature, in a) K    b) °C   c) °F, does this wavelength correspond?

A: a) The temperature corresponding to the maximum wavelength can be determined as, Here, λmax and T…

Q: The energy of ionizing radiation is-3 * .usually given in amper True False

A: Given statement : The energy of ionizing radiation is usually given in amper

Q: 3. Which form of electromagnetic radiation is the most damaging to living tissue? a. Microwave b. X…

A:

Q: microwave, computer, coffec tion of why it is your favorite 15

A: a) My  favorite electronic gadget is mobile phone. Mobile Phone is often also called “cellular…

Q: Why microwaves are named so?

A: Microwave is the name of a tool which is used to heat the food. it works on the theory of vibration…

Q: 9. Rank the following electromagnetic radiations (blue light, red light, X-rays, and radio waves)…

A: Given:  Some electromgnetic waves

Q: Which type of radiation would not be deflected by an electric field?

A: The answer is below

Q: in 2021, the tallest building in the world, the Burg Khalifa, klas estimated at $1.5 billion.…

A:

Q: The Compton effect has a clear indication The dual nature of radiation The wave nature of radiation…

A: The radiation was first considered a wave phenomena where the electric and magnetic fields oscillate…

Q: Very big particles, like droplets of water, absorb more radiation than they scatter. How does this…

A: Scattering means the change in the  direction of particles due to collisions of two or more…

Q: Place the following radiations in ascending order of photon energy, giving approximate value to…

A: Here given different photons, we have to order these photons in ascending order of energy

Q: in is The Maxwell equation also called

A: Electric flux =EAcosθ

Q: According to Huygens' principle, light is a form of O particle rays wave radiation O None of these

A: When a light goes from air to a denser medium, the wavelength of the light decreases, and the speed…

Q: How many vibrations per second are represented in a radio wave of 101.7MHz?

A:

Q: Why do photographs in a book or magazine look grainy when magnified?

A: The photograph look grainy means that has a rough appearance as if the images are made up of spots

Q: High-power lasers are used to compress a plasma (a gas of charged particles) by radiation pressure.…

A: We know thatIf the light is totally reflected from plasma then the pressure on the beam is given…

Q: Different types of radiation have different ranges when compared at the same energy and in the same…

A: We have to explain different types of radiation have different ranges when compared at the same…

Q: High-power lasers are used to compress a plasma (a gas of charged particles) by radiation pressure.…

A: The expression for the pressure is,

Q: What does electromagnetic interactions includes?

A: We have to answer that what does the electromagnetic interactions include?

Wien's displacement law

Students often get confused between Wien's displacement law and Planck's radiation law. Although both are historically related, yet they are conceptually different. Planck's law helps determine the spectrum of a blackbody, while Wien's law determines the relationship between peak wavelength and temperature.