MCQExams
0:0:1
CBSE
JEE
NTSE
NEET
Practice
Homework
×
JEE Questions for Physics Dual Nature Of Radiation And Matter Quiz 21 - MCQExams.com
JEE
Physics
Dual Nature Of Radiation And Matter
Quiz 21
If kinetic energy of free electron is made double, change in de-Broglie wavelength will be............
Report Question
0%
0%
2)
0%
0%
Photoelectric effect is obtained on metal surface for a light having frequencies f
1
& f
2
where f
1
> f
2
. If ratio of maximum kinetic energy of emitted photo electrons is 1 : K , so threshold frequency for metal surface is...............
Report Question
0%
0%
2)
0%
0%
Energy of α - particle having de - Broglie wavelength 0.004 Å is...................
Report Question
0%
1280 eV
0%
1200 eV
0%
1200 MeV
0%
1200GeV
Assertion
: Photo-electric can take place only with an electron bound in the atom.
Reason
: Electron is Fermion and photon is boson.
Report Question
0%
Both Assertion and Reason are true and Reason is correct explanation of Assertion
0%
Both Assertion and Reason are true, but Reason is not correct explanation of Assertion.
0%
Assertion is true but the Reason is false.
0%
Both Assertion and Reason is false.
Read the paragraph carefully and select the proper choice from given multiple choices. According to Einstein when a photon of light of frequency f or wavelength λ is incident on a photo sensitive metal surface of work function Ø . Where Ø < hf (here h is Plank\'s constant) then the emission of photo-electrons place takes place. The maximum K.E. of emitted photo electrons is given by K
max
= hf – Ø . If the there hold frequency of metal is f
0
then hf
0
= Ø . Stopping potential of emitted photo-electron is = ...........V.
Report Question
0%
0.413
0%
0.825
0%
1.32
0%
1.65
Each of the following questions contains statement given in two columns, which have to be matched. The answers to these questions have to be appropriately doubled . If the correct matches are A - q, s, B - p, r, C- q, s and D - s then the correctly doubled matrix will look like the one shown here :
Report Question
0%
A → q, s B → p, r C → q, s D → q, s
0%
A → p, s B → q, r C → q, s D → q, s
0%
A → q, r B → p, q C → r, s D → p, s
0%
A → q, s B → q, r C → r, s D → q, s
0:0:1
1
2
3
4
5
6
1
2
3
4
5
6
0
Answered
0
Not Answered
0
Not Visited
Correct : 0
Incorrect : 0
Report Question
×
What's an issue?
Question is wrong
Answer is wrong
Other Reason
Want to elaborate a bit more? (optional)
Practice Physics Quiz Questions and Answers
<
>
Support mcqexams.com by disabling your adblocker.
×
Please disable the adBlock and continue.
Thank you.
Reload page