Find the cutoff wavelength

Assignment Help Physics
Reference no: EM13257612

When light of wavelength 350 nm falls on a potassium surface, electrons having a maximum kinetic energy of 1.31 eV are emitted. Find values for the following.

(a) the work function of potassium

(b) the cutoff wavelength

(c) the frequency corresponding to the cutoff wavelength

Reference no: EM13257612

Questions Cloud

Explain what is the bond hybridization of if6 and if4 : Assuming that the following structures exist, what is the bond hybridization of IF6- and IF4-? Would they be stable?
Determining the firm net income : If a firm has a breakeven point of 20,000 units and the contribution margin on the firm's single product is $3.00 per unit and fixed costs are $60,000, What will the firm's net income be at sales of 30000 units?
What effect would rising rates have upon the following : If the Fed decides to raise interest rates next year, what effect would rising rates have upon the following: (1) Consumer financing for big-ticket items such as autos and homes; (2) the present and future values of annuities; (3) the NPV calculat..
Compute and plot the 128 point fft of a 0.125hz cosine wave : Compare the differences in the FFT result. Explain why even though the inputs to both FFTs are the same cosine waves, the shapes of the FFTs are different.Compute and plot the 128 point FFT of a 0.125Hz cosine wave
Find the cutoff wavelength : When light of wavelength 350 nm falls on a potassium surface, electrons having a maximum kinetic energy of 1.31 eV are emitted, find the cutoff wavelength
Explain structure of a compound that has a formula of c6h12o : Give the structure of a compound that has a formula of C6H12O and has a triplet (3H 1.1ppm), doublet (6H, 1.2 ppm), quartet (2H 2.4 ppm) and septet (1 H,2.7ppm ) in the 1H NMR spectrum? Please explain how you figured it out.
What is the range of phase shifts induced by the modulator : Make sure to mark significant points in your figure (amplitude, offset, time, etc.). How could a device be modified to work as an electro-optic phase modulator? If we apply signal V, what is the range of phase shifts induced by this modulator.
Describe an experiment that galvani could have performed : When we discussed the work of Galvani and Volta, we noted that Galvani's work was not fully appreciated until the development of instruments capable of detecting and amplifying the small biopotentials present in living organisms.
Determine the angles thetha : The acceleration of the car has the following representation: a=-(3.53i+0.309j)m/s^2. Knowing that a is parallel to the incline, determine the angles thetha and phi, and express their value in radian.

Reviews

Write a Review

Physics Questions & Answers

  Find out the power provided

Two speakers, one directly behind the other, are each generating a 152-Hz sound wave. What is the least separation distance between the speakers that will produce destructive interference at a listener standing in front of them.

  Write down the expression that shows the pressure

Write down the expression that shows the pressure

  Calculate escape velocity for an object

Calculate escape velocity for an object started at the surface of the earth, going straight up. Neglect any complications due to the earth turning.

  What power is required of the force moving the cab

A thin, flexible metal plate attached at one end to the platform, can be used to measure mass. When the free end of the plate is pulled down and released, it vibrates in simple harmonic motion with a period that depends on the mass attached to the pl..

  Find the area of the leaf

Gold, which has a density of 19.32 g/cm3, is the most ductile metal and can be pressed into a thin leaf or drawn out into a long fiber, what is the area (in m2) of the leaf

  State whether the image is upright or inverted

The lens and mirror are separated by d = 1.00 m and have focal lengths of +80 cm and -50 cm, respectively. An object is placed p = 1.00 m to the left of the lens as shown.

  Find the tension in the backstay

The mast of a sailboat is supported at the bow and stern by stainless steel wires, the forestay and backstay, Find the tension in the backstay and the force that the mast exerts on the deck

  What is the frequency of tuning fork

A soprano saxophone is an open pipe. If all keys are closed, it is approximately 65 cm long. Using 343 m/s as the speed of sound, find the lowest frequency that can be played on the instrument.

  Explain what is the tension in each wire

A wrench 0.3 meters long lies along the positive y-axis, and grips a bolt at the origin. A force is applied in the direction of langle 0, 1, 2rangle at the end of the wrench. Find out the magnitude of the force in newtons needed to give 100 newton..

  What is the car''s average velocity during the entire trip

To fill a child's inflatable wading pool, you use a garden hose with a diameter of 2.90 cm. Water flows from this hose with a speed of 1.50 m/s. How long will it take to fill the pool to a depth of 25.0 cm if the pool is circular and has the diame..

  Computed the magnitude and duration of the deceleration

Assume a small child rolls off a bed that is 0.38m above the floor. If the floor is hardwood, the child's head is brought to rest in approximately 2.2mm. If the floor is carpeted, this stopping distance is increased to about 1.1cm.

  Find the electric field in the region between the plates

Consider two closely spaced and oppositely charged parallel metal plates. The plates are square with sides of length L and carry charges Q and -Q on their facing surfaces. What is the magnitude of the electric field in the region between the plate..

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd