A 30w source of light produces monochromatic beam of

A 3.0W source of light produces monochromatic beam of wavelength 550 nm . This beam is incident on a metal surfae with work function of 0.5ev

a) how many photons are produced in one second?

b) what is the maximum energy of the emitted electrons

c) what is the stoppinng potential for the photoelectric effects

d) what is the cutoff wavelenght?

Write down the consumer and power source conditional : 1. give the definition of electrical circuit. draw the simplest electrical circuit and mark the directions of

Survives a proof test to 40 mpa 400 atmospheres what is the : supersonic wind tunnels store air under high pressure in cylindrical pressure vessels - the pressure when released

In a heat exchanger 10 kgs of water enters the hot side at : in a heat exchanger 10 kgs of water enters the hot side at 73degc and leaves at 43degc. 19 kgs of water enters the cold

A 150g block on a frictionless table is firmly attached to : a 150g block on a frictionless table is firmly attached to one end of a spring with k 30nm . the other end of the

A 30w source of light produces monochromatic beam of : a 3.0w source of light produces monochromatic beam of wavelength 550 nm . this beam is incident on a metal surfae with

The combination of water and co2 molecules in the : the combination of water and co2 molecules in the atmosphere accounts for approximately 150 wm2 in greenhouse heating.

A box contains 10 screws three of which are defective two : a box contains 10 screws three of which are defective. two screws are drawn at random. find the probability that

In a haynes- shockley experiment the distance between the : in a haynes- shockley experiment the distance between the cross r and a is d0.1m t0.25 milliseconds if the carriers are

Fnd the velocity and elevation heads in kjkg v122 v222 : steam enters a turbine operating at steady state with a mass flow 10 kgmin a specific enthalpy 3100 kjkg and a velocity