Find values the work function of barium

Assignment Help Physics
Reference no: EM13656335

When light of wavelength 370 nm falls on a barium surface, electrons having a maximum kinetic energy of 0.86 eV are emitted. Find values for the following.

a) the work function of barium
eV
b) the cutoff wavelength
nm
c) the frequency corresponding to the cutoff wavelength
Hz

Reference no: EM13656335

Questions Cloud

Determination of the initial velocity of a projectile : Determination of the Initial Velocity of a Projectile from Range-Fall Measurements. After the horizontal projectile leaves the gun, what are the accelerations in the x and y directions?
Horizontal direction is conserved over collision interval : Why is it justified to say that the momentum in the horizontal direction is conserved over the collision interval? Is momentum conserved before and after the collision? Explain.
A proton moves with a velocity : A proton moves with a velocity of v = 5i-5j+k m/s in a region in which the magnetic field is b= i +2j - k. What is the magnitude of the magnetic force this particular experiences?
The angular displacement of each wheel : A person is riding a bicycle, and its wheels have an angular velocity of 16.1 rad/s. Then, the brakes are applied and the bike is brought to a uniform stop. During braking, the angular displacement of each wheel is 18.4 revolutions.
Find values the work function of barium : When light of wavelength 370 nm falls on a barium surface, electrons having a maximum kinetic energy of 0.86 eV are emitted. the frequency corresponding to the cutoff wavelength
The trap-jaw ant can snap its mandibles shut in as little : The trap-jaw ant can snap its mandibles shut in as little as 1.6x10-4 s. In order to shut, both mandibles rotate through a 87° angle. What is the average angular velocity of one of the mandibles of the trap-jaw ant when the mandibles snap shut?
Light with a wavelength problem : Light with a wavelength of 616 nm passes through a slit 7.14 μm wide and falls on a screen 1.80 m away. Find the linear distance on the screen from the central bright fringe to the first bright fringe above it.
Extremes of ultraviolet portion of electromagnetic spectrum : The extremes of the ultraviolet portion of the electromagnetic spectrum range from ? 1.0 10-7 m to ? 1.0 10-9 m. Find the minimum accelerating voltages required to produce wavelengths at these two extremes.
The frequency corresponding to the cutoff wavelength : When light of wavelength 370 nm falls on a barium surface, electrons having a maximum kinetic energy of 0.86 eV are emitted.

Reviews

Write a Review

Physics Questions & Answers

  Calculate the potential difference across its body

Birds resting on high-voltage power lines are a common sight.The copper wire on which a bird stands is 2.1 cm in diameter and carries a current of52 A. calculate the potential difference across its body

  How far does it go up the incline before it stops

A spring with constantk = 40 N/m is at thebase of a frictionless, 30 inclined plane. how far does it go up the incline before it stops

  Find the work done on the ball by air resistance

A baskerball player makes a jump shot. The 0.600 kg ball is released at a height of 2.0 m above the floor with a speed of 7.20 m/s. What is the work done on the ball by air resistance

  Calculate the magnitude of the emf induced in the loop

A circular loop of wire of radius 12.5 cm is placed in a magnetic field directed perpendicular to the plane of the loop, calculate the magnitude of the emf induced in the loop

  Determine how fast is dan going as his feet hit the ground

Dan is gliding on his skateboard at 4.00 m/s. He suddenly jumps backward off the skateboard, How fast is Dan going as his feet hit the ground

  You height of your eyes above the water 175 m are standing

you height of your eyes above the water 1.75 m are standing 2.00 m from the edge of a 2.50 m deep swimming pool. you

  What is the maximum voltage across the circuit

For a particular RLC series circuit, the capacitive reactance is 9.75 ?, the inductive reactance is 42.7 ?, What is the maximum voltage across the circuit?

  What is the angular velocity of the disk

The platter of a computer hard drive disk rotates at 5400rpm.

  An electron moving with a speed of 42 x 105 ms in the

an electron moving with a speed of 4.2 x 105 ms in the positive x direction experiences zero magnetic force. when it

  Calculate the electric potential energy

A proton is located at the origin, and a second proton is located on the x-axis at x=6.00 fm. (a) compute the electric potential energy associated with this configuration.

  Calculate the charge on each plate

The electric field between two square metal plates is 130 N/C. The plates are 1.0 m on a side and are separated by 3.0 cm, Calculate the charge on each plate

  What is the buoyant force on the piece of metal

A 5 kg piece of metal displaces 0.75 L of water when submerged. What is the buoyant force on the piece of metal

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