Find the frequency of the radiation of maximum intensity

Assignment Help Physics

Reference no: EM13719889

Question 1) The walls of a blackbody cavity are at a temperature of 27^oC. What is the frequency of the radiation of maximum intensity?

Question 2) Assume that a 100 - W light bulb gives off 2.50% of its energy as visible light. How many photons of visible light are given off in 1.00 min? (Use an average visible wavelength of 550 nm)

Question 3) What is the energy of photons (joules) emitted by an 107.5-MHz FM radio station?

Question 4) What is the longest wavelength of light that will emit electrons from a metal whose work function is 3.50 eV?

Question 5) A metal with a work function of 2.40 eV is illuminated by a beam of monochromatic light. If the stopping potential is 2.5V, what is the wavelength of the light?

Question 6) What is the de Broglie wavelength of a 1000 kg car moving at a velocity of 25 m/s?

Question 7) A hydrogen atom in its ground state is excited to the n = 5 level. It then makes a transition directly to the n = 2 level before returning to the ground state.

a) What are the wavelengths of the emitted photons?

b) Would any of the emitted wavelengths be in the visible region?

Question 8) What is the longest wavelength light capable of ionizing a hydrogen atom in the ground state?

Reference no: EM13719889

Questions Cloud

What is the pressure that the pump can deliver : 4 kW motor is driving an oil pump with an efficiency of 95% in a 10 mm diameter pipe. If the velocities of the fluid in the pipe is 1.8 m/s. What is the flow rate that the pump delivers?

Moles of the endo conformer are present in the effluent : Cyclopentadiene and cyclohexanone are combined in a reactor and undergo an addition reaction. The adduct can either have an endo or exo conformation. For the application your plant has only the endo conformation is desired.

How many pump stations would be needed for a pipeline : 200mm DN pipeline has to deliver 80m³/h of water at a discharge pressure of 5,550 kPa. Approximately how many pump stations would be needed for a pipeline 300km long?

Pole-vaulter is holding the vaulting pole parallel : A pole-vaulter is holding the vaulting pole parallel to the ground. the pole is 5 m long. The vaulter grips the pole with his right hand at the top end of the pole and with his left hand 1 m from the top end of the pole. the mass of the pole is 2.5 k..

Find the frequency of the radiation of maximum intensity : The walls of a blackbody cavity are at a temperature of 27oC. What is the frequency of the radiation of maximum intensity

A closed system consists of an ideal gas : A closed system consists of an ideal gas with constant specific heats that remain constant. The gas undergoes a process in which the temperature increases from T1 to T2.

The power developed by the turbine : A gas turbine has a mixture of 17% CO2 , 60% N2 and 17% H2O on a molar basis enter at 1800°R and 116 psi and a mass flow rate of 4.41 lbm/s. The gas expands through the turbine isentropic ally to a pressure of 14.7 psi and a temperature of 1112.4°R.

Amagots law and the generalized compressibility chart : A rigid tank contains 2 kmol of N2 and 6 kmol of CH4 gases at 200 K and 12 MPa. Estimate the volume of the tank using Amagot’s Law and the generalized compressibility chart

What is the molecular weight of the mixture : A gas mixture exists composed of 45% O2, 35% CO2 and 20% Ar on a molar basis. The pressure of the gas is 1 atm and the temperature is 50°F.

User Account

All Pages