TRUE OR FALSE Interstellar reddening results when stars near death become Red Giants.

Q: What is the radiant power of the sun if r = 6,960 x 108 m?

A:

Q: What are some examples of fluorescent light and incandescent light?

A: Fluorescent lights are gas filled tubes (tube lights). The gas gets excited by electric pulses and…

Q: Using data from Problems 13 and 15, calculate the aver- age distance of the electron from the…

A: The Zeff (1s) for hydrogen atom is 1 The Zeff (2s) for lithium atom is 1.28 The Zeff (3s) for sodium…

Q: Define the term speed of light?

A: The term speed of light has to be defined.

Q: II C Which part in the figure can be a deuterium lamp? A ם O O

A: Deuterium lamp is used as a source of light in various spectroscopy techniques.

Q: Differentiate between infrared radiation and microwave radiation?

A: Microwave and Infrared radiations both are the forms of electromagnetic radiation. The microwave…

Q: Explain in some detail why the three graphs in Figure 7.28 all intercept the vertical axis in about…

A: A question based on heat capacity, which is to be accomplished.

Q: I need help explaining why led bulbs are considered to be superior to other types of bulbs.

A: LED bulbs are generally known as light emitting diode bulb .

Q: Four quantum nos for Argon

A:

Q: In what ways are microwave and ultraviolet radiation the same? In what ways are they different?

A: Electromagnetic waves, or EM waves, are waves that are produced when an electric field and a…

Q: Determine the temperature of the surface of the sun if the hydrogen atoms move with an average speed…

A: Given, average speed of hydrogen = Vav = 1.2 × 104 m/s. Molar mass of hydrogen (M) = 2 g/mol…

Q: How fast must a 142-g baseball travel in order to have ade Broglie wavelength that is equal to that…

A: Given : mass of baseball = 142 g And wavelength of baseball = λ = wavelength of a X-ray photon = 100…

Q: How would density of states (DOS) vs energy plots behave for quantum wells, quantum wires and…

A: Solution: Density of states-(DOS)- The density of states (DOS) is the number of distinct states that…

Q: How many possible micro-states will a system with 11 argon atoms in 11 slots have?

A: Given  number of Argon atoms =11 Number of slots =11 To calculate :- Number of microstates

Q: I can see through an opaque object. O True O False

A: We know that, opaque material do not allow transmission of light.

Q: X rays travel fasterthan microwaves. is it true / false ?

A: According to Electromagnetic theory  all the part of electromagnetic radiation have same velocity.

Q: That is, Equation 2 is of the form of a straight line; hence the Rydberg constant is the negative of…

A: From the given data, the table and the graph is shown below.

Q: Narrate James Clerk Maxwell’s line of reasoning in linking electromagnetism to light by interpreting…

A: James Clerk Maxwell’s found out that the electric and magnetic lines coupled together to form…

Q: Explain the various phenomenon happen when an electron beam impinges on the specimen.

A: When an electron beam impinges on the specimen the various phenomenon happens are :  ==> the…

Q: Describe the Born–Haber cycle?

A: Born-Haber cycle is the method for measuring reaction energies.

Q: Our electron microscope can operate at 40 kV of accelerating voltage. Find de Broglie wavelength of…

A:

Q: "race condit

A: Race Condition A straightforward illustration of a race condition is a light switch. In PC memory or…

Q: Determine the total capacity for electrons of the fourth principal level

A: The principal quantum number determines the energy level of the electron and its distance from the…

Q: Illustrate the effects of Photo-electric?

A: Photoelectric effect, phenomenon in which electrically charged particles are released from or within…

Q: A flask of ammonia is connected to a flask of an unknown acid HX by a 2.00 cm glass tube (where "X"…

A: The total length of glass = 2 cm Distance travelled by ammonia (r1) = 1.37 cm Distance travelled by…

Q: What is the wavelength of a UV photon with a frequency of 3.529 x 1o45 s1? Enter your answer in…

A:

Q: Who introduced the method of treating a photon gas ?

A: This question is related to elementary particles.

Q: calculate frequency and energy of photons of a radiations having wavelength 6000 armstrong.

A: The frequency of light of given wavelength is calculated as,

Q: (c) What density of 8'Rb atoms is required to observe a BEC at a temperature of T = 150 nK.

A:

Q: The type of universe that will keep expanding forever is   a. an open universe.   b. a closed…

A: Interpretation -  To tell about the type of universe that will keep expanding forever is -…

Q: A detector measures the amount of light generated by the flame and not absorbed by iron. True False

A:

Q: Explain The Born–Haber Cycle?

A: Born–Haber cycles are used primarily as a means of calculating lattice energy which cannot otherwise…

Q: Which statement on planes is correct? Part of (300) planes are (100) planes. Part of (100) planes…

A: Planes are drawn by the use of miller indices as shown below: Let us take an example of miller…

Q: (i) Define frontier orbitals. (ii) Why are frontier orbitals important? a.

A: During any chemical reaction or the complex formation, a molecule or a metal ion interact with the…

Q: If V= 9.14L at 24.0°c; Find V (L) at 48.0°c.

A: Given is  V1 = 9.14 L T1 = 24°C = 297 K   V2 = ? T2 = 48°C = 321 K We will assume pressure constant

Q: How to measure the emission spectrum of Hydrogen, Neon and mercury vapors?

A: Emission spectrum of hydrogen: If we take hydrogen gas in a glass tube and pass electric current,…

Q: 10. The ratio of population of two energy levels (N2/N1) is 1.06x10. Find the wavelength of light…

A: Population of a state denotes the the average number of molecules present in that particular state…

Q: Calculate the wavelength of the 6000Hz frequency

A: The question is based on the concept of atomic structure . we have to calculate wavelength of the…

Q: How to find the difference in energy between two level responsible for ultraviolet emission at…

A: The difference in energy between two levels (∆E) = h ν = h c/ λ where, ∆E = difference in energy…

Q: TRUE OR FALSE Open Star Clusters gravitationally hold together for no more than 2 million years

A: False