If an electron and a photon have the same wavelength, then they will have the same

A Velocity
B Linear momentum
C Angular momentum
D Energy

Correct Answer: Linear momentum

When a non-relativistic electron and a non-relativistic proton are moving and have the same de Broglie wavelength, then they will have the same linear momentum p = mv. If the electron and proton have the same momentum, they cannot have the same speed because of the difference in their masses. An electron and photon can have the same wavelength since the wavelength of electron can be changed by changing its velocity.
Bissoy MCQ
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Related Questions

একটি ধাতব তলে λ তরঙ্গদৈর্ঘ্যের একবর্ণী আলোকরশ্মি আপতিত হলে ফটো-ইলেক্ট্রন নির্গত হয় এবং এক্ষেত্রে বিভবের মান 3Vo একই তলে যখন 2λতরঙ্গদৈর্ঘ্যের একবর্ণী আলো আপতিত হয়, তখন নিবৃত্তি বিভবের মান Vol ফটো-ইলেক্ট্রন নির্গত হওয়ার জন্য ঐ তলটির সূচন তরঙ্গদৈর্ঘ্যের মান নির্ণয় কর।(A monochromatic light of wavelength λ is incident on a metallic surface then ejects photo-electron and the value of stopping potential is 3Vo. When the same surface is illuminated by a light of wavelength 2λ., the stopping potential becomes Vo. Calculate the threshold wavelength for this surface to eject photo electrons.)
A 6λ
B 8λ
C 4λ3
D λ
E 4λ
A photon of X-ray has energy of 1 keV. A photon of visible radiation has energy of 3 eV. In this context, which one of the following statements is not correct?
A The wavelength of X-ray photon is less than the wavelength of visible radiation photon.
B Both\ \ the\ \ photons\ \ have\ \ different energies.
C The\ speeds\ of\ both\ the\ photons\ in vacuum are different
D The\ \frequency\ \of\ \X-ray\ \photon\ \is higher\ than\ the\ frequency\ of\ visible radiation photon.
6630A° তরঙ্গদৈর্ঘ্য (wavelength ) এর ফোটনের শক্তি (energy of a photon ) কত?
A 6×10-19 J   
B     4×10-19 J
C       5×10-19 J  
D           5×10-19 J   
The gypsys are a tribe of strange people. They do not have any fixed home but wander about from place to place and live in tents. they were originally natives of India. But as they reached England from Egypt ,the English took them from Egyptians. this is why they came to be called gypsys. they were beloved to possess strange powers. they could tell your fortune by reading the palm of your hand. it was thought they stole little children to train them in their way of life. whenever a child got lost it was thought that it has been carried away by gypsys so they were arrested and sent for trial. but this attitude towards the Gypsy has gradually changed.The gypsies are people who ---
A have a settled way of life
B came originally from Egypt to England
C are always on the move
D steal children to train them in the way of life
124λ তরঙ্গদৈর্ঘ্যের এক রঙা এক্সরে একটি কার্বণ ব্লক দ্বারা বিক্ষিপ্ত হয়। 180° তে এক্সবের বিক্ষিপ্ত বিকিরণের তরঙ্গদৈর্ঘ্যের মান নির্ণয় কর।(A monochromatic X-rays of wavelength 0.124λ is scattered by a carbon block. Find the wavelength of X-rays scattered through 180°) 
A 0.0484 λ
B 0.1724 λ
C 0.0756 λ
D 0.0242 λ
E 0.0968 λ
A free electron is a valence electron that has broken away from its parent atom.
A True
B False
Who indirectly determined the mass of the electron by measuring the charge of the electron?
A Thomson
B Millikan
C Rutherford
D Einstein
'আলে হচ্ছে photon - এর সমষ্টি -এই উক্তির প্রমাণ পাওয়া যায় কোন পরীক্ষণ থেকে?
A Interference
B Polarization
C Photoelectric
D Diffraction
ফোটনের স্পিন(spin of photon) কত?
A 2
B 1/2
C 1
Who discovered Photon?
A George Crum
B Albert Einstein
C Henry Cavendish
D Humphry Davy

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