MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Intensity vs Photocurrent

A milli-ammet...

Question

A milli-ammeter in the circuit of a photocell measures

A

Number of electrons released per second

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

B

Energy of photon

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

Velocity of photoelectrons

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

Momentum of the photo electrons

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A Number of electrons released per second
A milliammeter measures current in the circuit.
Current $=$ charge flown per unit time
$=$ no. of electrons released per second.

Suggest Corrections

thumbs-up

0

Similar questions

Q. The light of radiation

300 n m

falls on a photocell operating in the saturation mode. The spectral sensitivity is

4.8 m A / W .

The yield of photo electrons (i.e. number of electrons produced per photon) is

Q. The maximum energy of photo electrons emitted in a photocell is 2 eV. For no photo-electrons to reach the anode, the stopping potential should be:

Q. A photocell emits

4 \times 10^{12}

electrons per second with maximum KE of E when the source of light is at a distance d from the photocell. If the distance is made equal to 2d, the number of electrons emitted per second and maximum K.E.will be

Q. Statement-1 : When ultraviolet light is incident on a photocell, its stopping potential is

v_{0}

and the maximum kinetic energy of the photo electrons is

K_{m a x}

. When the ultraviolet light is replaced by X-rays,

K_{m a x}

v_{0}

, decreases.
Statement -2: Photo electrons are emitted with speeds ranging from zero to a maximum value.Below a certain negative voltage

V_{0}

,no photons are emitted in a photocell

Q. Photo electrons are just released when a wave length

3100 A^{0}

is incident on it. To increase the K.E. of the photo electrons

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Intensity vs Photocurrent

PHYSICS

Watch in App

explore_more_icon

Explore more

Intensity vs Photocurrent

Standard XII Physics

Join BYJU'S Learning Program

CrossIcon