NEET1 NEET1 Physics
Please answer it. 
Asked by amitjena226
25th November 2017
2:22 PM
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CBSE XII Science Physics
the stopping potential in an experiment of photon is 2v what is the maximum kinetic energy of photoelectrons emitted?
Asked by vasturushi
28th February 2018
12:49 PM
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JEE Plances JEE (Main) Physics
The maximum velocity of the photoelectrons emitted from the surface is v when the light of frequency n falls on a metal surface. If the incident frequency is increased to 3n, the maximum velocity of the ejected photoelectrons will be : (1) less than 3 v (2) v (3) more than 3 v (4) equal to 3 v
Asked by modi72879
2nd April 2018
7:16 PM
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NEET1 NEET1 Physics
in photoelectric emission ,does increase in frequency, increase the no. of electrons emitted from the metal surface?
Asked by adisakthivel
4th April 2018
5:13 PM
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NEET1 NEET1 Physics
maximum velocity of photoelectrons emitted by a photometer is 1.8×106 m/s. Taking em=1.8×1011 coul/kg for electrons, the stopping potential of emitter is :
Asked by imtiyazmulla68
30th April 2018
1:23 AM
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CBSE XII Science Physics
the threshold frequency for photoelectric effect for a metal surface is found to be 4.8 x 10^16 hz . the stopping potential required when the metal is iradicated by radiation of frequency 5.6x10^16 hz is
Asked by Atulcaald
31st May 2018
9:32 PM
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CBSE XI Science Physics
An electron in the hydrogen atom jumps from excited state n to the ground state.The wavelength so emitted illuminates a photo-sensitive material having work function 2.75eV.If the stopping potential of the photoelectron is 10V, the value of n is
Asked by aiswaryapbindhu3
8th August 2018
11:40 PM
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NEET1 NEET1 Physics
The work function of potassium is 2.0eV when it is illuminated by light of wavelength 3300angstrom photo electrons are emitted the stopping potential of photo electron is
Asked by abduljaffer789
10th September 2018
12:40 AM
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CBSE XII Science Physics
For radiation of wavelength lambda,the stoping potential is 3v0 and for 2 lambda, the stoping potential is v0.find the threshhold wavelength
Asked by Parasbir99
11th November 2018
7:02 AM
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CBSE X Physics Light - Reflection and Refraction
Q.1. What is photoelectric effect? Q.2. Power of combination of lens A&B is 5D. If focal length of A is 0.15m.What is the power & focal length of B?
Asked by agraharianiruddha
11th December 2018
6:52 PM
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CBSE XII Science Physics
plz, solve this urgent.....
Asked by ramandeep.kaur
5th March 2019
5:31 PM
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CBSE XII Science Physics
Production of x ray and emmison of electrons in photoelectric effect are two opposite phenomenon - justify the statement.
Asked by mridulabarua05
8th March 2019
2:00 PM
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NEET NEET Physics Dual Nature of Matter and Radiation
X-rays of a particular wavelength are used to irradiate sodium and copper surfaces in two separate experiments and stopping potentials are determined. The stopping potentials are (1) Equal in both cases (2) Greater for sodium (3) Greater for copper (4) Infinite in both cases
Asked by kumarisakshi0209
18th March 2019
9:48 AM
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CBSE XII Science Physics Dual Nature of Radiation and Matter
Calculate no of photons passing through a ring of unit area in unit time if light of intensity 100 wm -2 and wavelength 400nm is fallingnormally on the ring
Asked by manasvijha
19th March 2019
7:17 PM
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NEET NEET Physics Dual Nature of Matter and Radiation
A monochromatic light incident on a metal a having threshold frequency vo it emits photo electron of maxiumum kinetic energy k now incident frequency is made three times and fall on a metal b having threshold frequency 2vo what will maxiumum kinetic energy of photon electron emitted by metal b
Asked by manasvijha
19th March 2019
10:02 PM
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NEET NEET Physics
Why in photoelectric effect collision between electron and photon is inelastic type?
Asked by ashutosharnold1998
15th May 2019
9:18 AM
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NEET NEET Physics
Can free electron absorb energy of photon or is photoelectric effect take place with free electron?pls explain in details?
Asked by ashutosharnold1998
16th May 2019
5:38 PM
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CBSE XI Science Chemistry Atomic Structure
Sir plz solve it explaining me all the concepts being applied here,Thanks
Asked by vishakhachandan026
25th May 2019
10:17 PM
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CBSE XII Science Physics Dual Nature of Radiation and Matter
numericals based on einstein photoelectric equation
Asked by khushimassey437
31st May 2019
8:41 AM
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CBSE XI Science Chemistry The s-Block Elements
Do group 2 elements show photoelectric effect?
Asked by sumitasarkarkandi
2nd December 2019
6:32 PM
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CBSE XII Science Physics Atoms
At stopping potential does the work function becomes zero?
Asked by jabreshwar1008
28th December 2019
8:59 PM
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CBSE XII Science Physics Dual Nature of Radiation and Matter
The threshold wavelength of a photosensitive metal is 275nm.calculate the maximum velocity of the photoelectron ejected when light of 180nm is incident on it. How to solve this??
Asked by Hemanthrakshitha95
3rd March 2020
2:55 PM
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NEET NEET Physics Dual Nature of Matter and Radiation
⭕ Help me in (b) and (c) ... Explnation needed...!! Thanq🙂
Asked by jhajuhi19
22nd April 2020
8:32 AM
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CBSE XII Science Physics
16. The work function for cesium is 19 3.43 10 J. What is the kinetic energy of an electron liberated by radiation of 550 nm? What is stopping voltage? How many electrons are generated if the total energy absorbed at 550 nm is 1.00 10 J 3 ?
Asked by pariveshnath2004
4th August 2020
2:45 PM
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CBSE XI Science Chemistry Structure of Atom
Dear, It is given that...lesser the wavelenth is....higher the intensity will be. But we know that lesser wavelength means higher frequency. So my douybt is....why it is that "The no.of electrons ejected per second from the metal surface depend upon the intensity of incident radiation but does not depend upon its frequency"? (acc to photoelectronic effect) WHY? Pls clarify,
Asked by salvinsabu001
12th August 2020
11:43 PM
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CBSE XI Science Chemistry Structure of Atom
what is photoelectric effect
Asked by anish.4006
18th September 2020
8:00 PM
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CBSE XII Science Physics
Describe the experiment to study photoelectric effect and explain the laws of photoelectric effect and the significance of each
Asked by subashchoudhary0099
1st March 2021
11:42 PM
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CBSE XI Science Physics
Calculate the speed of the fastest electron emitted by a tungsten surface { work function 4.5 eV }when it is irradiated with light of energy 5.8 eV. (given mass of electron 9.1 x 10 kg)
Asked by sonawaneom09
7th February 2024
10:13 AM
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CBSE XII Science Physics Dual Nature of Radiation and Matter
ans the questions wit reason
Asked by mishrigupta19319
7th April 2024
11:23 AM
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CBSE XII Science Physics Dual Nature of Radiation and Matter
which answer is correct and most appropriate with explanation
Asked by mishrigupta19319
8th April 2024
6:28 PM
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