The collector plate in an experiment on photoelectric effect is kept vertically above the emitter plate. Light source is made on and a saturation photocurrent is recorded. An electric field is switched on which has a vertically downward direction.

Question

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Answer 1

Force on a electron in a electric field is given by:
$F = e E$ .
So, if an electric field is switched on which has a vertically downward direction then the kinetic energy of the electrons will increase and will reach the collector plate in an experiment on photoelectric effect is kept vertically above the emitter plate.

So, the answer is option (B).

Answer 2

Force on a electron in a electric field is given by:

F = e E

.

So, if an electric field is switched on which has a vertically downward direction then the kinetic energy of the electrons will increase and will reach the collector plate in an experiment on photoelectric effect is kept vertically above the emitter plate.

So, the answer is option (B).

The collector plate in an experiment on photoelectric effect is kept vertically above the emitter plate. Light source is made on and a saturation photocurrent is recorded. An electric field is switched on which has a vertically downward direction.

The photocurrent will increase

The kinetic energy of the electrons will increase

The stopping potential will decrease

The threshold wavelength will increase

In a cathode ray tube, what is the effect on the beam of particles if it passes through the electric field?

The diagram below shows a cathode ray tube in which the arrow indicates a beam of charged particles approaching an electric field between the plates A and B. State the amount of charge on each particle.

In a vacuum diode, $2 \times 10^{19}$ electrons emitted from the cathode reach the plate of a vacuum diode in 4 seconds. Find the current and the power consumed if the potential difference between the cathode and the plate is $200 V$ .

The diagram below shows a cathode ray tube in which the arrow indicates a beam of charged particles approaching an electric field between the plates A and B. Name the charged particles.

The diagram below shows a cathode ray tube in which the arrow indicates a beam of charged particles approaching an electric field between the plates A and B. What will happen to the beam when it passes through the electric field?

Revise with Concepts

Discovery of Atom and Nucleus

The collector plate in an experiment on photoelectric effect is kept vertically above the emitter plate. Light source is made on and a saturation photocurrent is recorded. An electric field is switched on which has a vertically downward direction.

The photocurrent will increase

The kinetic energy of the electrons will increase

The stopping potential will decrease

The threshold wavelength will increase

In a cathode ray tube, what is the effect on the beam of particles if it passes through the electric field?

The diagram below shows a cathode ray tube in which the arrow indicates a beam of charged particles approaching an electric field between the plates A and B. State the amount of charge on each particle.

In a vacuum diode, 2×1019 electrons emitted from the cathode reach the plate of a vacuum diode in 4 seconds. Find the current and the power consumed if the potential difference between the cathode and the plate is 200V.

The diagram below shows a cathode ray tube in which the arrow indicates a beam of charged particles approaching an electric field between the plates A and B. Name the charged particles.

The diagram below shows a cathode ray tube in which the arrow indicates a beam of charged particles approaching an electric field between the plates A and B. What will happen to the beam when it passes through the electric field?

Revise with Concepts

Discovery of Atom and Nucleus

In a vacuum diode, $2 \times 10^{19}$ electrons emitted from the cathode reach the plate of a vacuum diode in 4 seconds. Find the current and the power consumed if the potential difference between the cathode and the plate is $200 V$ .