A pulsed laser emits photons of wavelength 780nm and if the energy of the pulse is 2x10-10 J, find the number of photons in each pulse.

Q: Pure anatase TiO2 shows the = major (101) peak at 2Theta 25°. The FWHM of the peak was determined to…

A: Given Diffraction angle 2θ                                  = 25° FWHM of the peak β…

Q: net is slowly rotated so 100 Joules of work are

A: Given: e=20 cm=20×10-2 m,P=10-4 webers

Q: erimentalist clai ts, a heat engim R, converts 16

A: GivenQ1=300 BtuT1=900 RW=160 BtuT2=540 R

Q: B. What is the power radiated from a nude body 1.75m² in the area

A: Solution:-Given thatBody surface area (A)=1.75 m2Normal body temperature (T)=37°C=37+273=310…

Q: Determine the speed with which the erythrocyte should move evenly with the observed erythrocyte…

A: Given: Density of erythrocyte = σ = 2.1 kg/m3 Radius of erythrocyte = r = 9.6 μm = 9.6×10-6 m…

Q: Question : 3 Two displacement vectors Ā and B are shown in figure. Find: (a) Magnitude and direction…

A: This problem has many parts so we will solve first 3 parts for you. If you want the solution for…

Q: Step 1: The gap between the two plates Is filled with a dlelectric slab of a dlelectric constant of…

A: From Step 2 we had Electric field E2=kE1, Capacitance C2=C1 /k and Q2=C2E2d.  k here is 6.3 and d is…

Q: 1- Work done by friction (a) increases kinetic energy of body (c) increases potential energy of body…

A:

Q: Consider a plasma of electrons between two grounded plates. If the density of electrons is 2€0 n3D…

A: Since both the plates are grounded. This means that the potential at both the plates is zero,…

Q: Problem 1: A uniform line of charge with total charge Q runs along the y-axis from -t/2 to +l/2.…

A:

Q: If the X-ray field size is increased what effect will this have on the image on the film? TYPED AND…

A: Concept used: Collimation is important aspect of imaging technique.  It controls the quality of…

Q: Two masses m1 = 12 kg and m2 = 6 kg are con %3D by a light string that passes over a frictionless

A: Givenm1=12 kgm2=6 kgg=10 m/s2

Q: 1-A particle moves along the x axis. Its position varies with time according to the expression…

A:

Q: 10. A mountain climber encounters a crevasse in an ice field. The opposite side of the crevasse is…

A:

Q: iving system include a dish se temperature of 37 K and with equivalent noise tem input of the l…

A: a) The formula is given as, Te =TeA +TeLNA hLNA

Q: How much work is done by a person lifting a 7.0-kg object from the bottom of a well at a constant…

A: Given Weight or Force = 7.0kg Speed = 4 m/s Time = 1.5s

Q: 1. Give the temperature classification for solid insulating materials. Why is this classification…

A:

Q: The energy of the simple harmonic oscillator is given by the relationship E=nhw.

A: E =nhw is energy defined for photon like particle In the case of Simple Harmonic oscillator, energy…

Q: A Ferris wheel with radius 14.0 m is turning about a horizontal axis through its center (the figure…

A: Given information: The radius of the Ferris wheel (r) = 14.0 m The linear speed of the passengers…

Q: An object of mass m = 15 kg rests on a rough inclined surface making an angle a the horizontal, as…

A: Given:- Mass of the object is m=15 kg Angle of inclination of the incline is α=30° Gravitational…

Q: - A simple harmonic oscillator with an amplitude of 4mm and a frequency of ƒ = 450Hz generates a…

A: Amplitude of the wave, A=4mm⇒4×10-3m Frequency of wave, f=450Hz Linear mass density, μ=15×10-3kg/m…

Q: Is a photon absorbed by atoms when its energy is less than the energy difference between orbits?

A: Given: energy of photon is less than the energy difference between the orbits To find: Is that…

Q: What is the velocity of a penguin that swims 90 meters through the water in 12 minutes? O 7.5…

A:

Q: A sample of a radioactive element has a half-life of 180 days; what percent of this sample will…

A: The decay constant of a radioactive sample is given by :  The amount of sample left after 't' time…

Q: vibrations Q: Use Lagrange's equations to drive the differential equations governing the motion of…

A: Use Lagrange's equations to drive the differential equation of motion. The equation of motion we…