Find work function of potassium and cut-off wavelength

Reference no: EM13664454

When light of wavelength 350 nm falls on a potassium surface, electrons are emitted having a maximum kinetic energy when the stopping voltage, Vs = 1.30 V. Find

1. Work function of potassium

2. The cut-off wavelength

3. The frequency corresponding to the cut-off wavelength

Reference no: EM13664454

Questions Cloud

What is the focal length of lens-front of a converging lens : When an object is placed 6.0cm in front of a converging lens, a virtual image is formed 9.0 cm from the lens. What is the focal length of the lens?

Utilize the lens equation decide characteristics of images : Two converging lenses, A with a focal length of +2.0cm and B with a focal length of +5.0cm, are placed 14 cm apart. An object is place 3.0cm to the left of lens A. Utilize the lens equation decide the characteristics of the image

Red light is diffracted by a single slit : Red light (wavelength = 700nm) is diffracted by a single slit, and the first intensity minimum (the first dark fringe) occurs at 3.9 degrees. What is the width of the slit?

Discover the increase in the waters entropy : Assume that by stirring 509 g of water you are able to increase its temperature from 19.0° C to21.0° C. Discover the increase in the water's entropy.

Find work function of potassium and cut-off wavelength : When light of wavelength 350 nm falls on a potassium surface, electrons are emitted having a maximum kinetic energy when the stopping voltage, Vs = 1.30 V. Find Work function of potassium and The cut-off wavelength.

What is the spring constant of the spring : A positively charged object with a mass of 0.121 kg oscillates at the end of a spring, generating ELF (extremely low frequency) radio waves that have a wavelength of 4.88*10 7 m. The frequency of these radio waves is the same as the frequency at whi..

Two polarizers are oriented : Two polarizers are oriented at 38 degrees to one another. Light polarized at a 19 degree angle to each polarizer passes during both. What percent reduction in intensity takes place?

Steel aircraft carrier problem : A steel aircraft carrier is 384 m long when moving through the icy North Atlantic at a temperature of 4.24 °C. By how much does the carrier lengthen when it is traveling in the warm Mediterranean Sea at a temperature of 25.3 °C?

Determine the magnitude of the electric field intensity : Use Gauss' law to determine the magnitude of the electric field intensity at point r units away from an infinitely on thin wire carrying a charge λ unit per length. (Consider a cylinder of length L and radius r concentric with the wire.)

User Account

All Pages