Dual Nature of Matter and Radiation (NEET Physics): Questions 11  14 of 34
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Question number: 11
» Dual Nature of Matter and Radiation » DeBroglie Relation
Question
Which of the following figure represents variation of particle momentum and the associated deBroglie wavelength?
Choices
Choice (4)  Response  

a.  
b.  
c.  
d. 
Question number: 12
» Dual Nature of Matter and Radiation » DeBroglie Relation
Question
One electron & one proton have equal energies then ratio of associated deBroglie wavelength will be,
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 13
» Dual Nature of Matter and Radiation » DeBroglie Relation
Question
A hydrogen atom moving at a speed v absorbs a photon of wavelength 122 nm and stops. Find the value of v. (Mass of hydrogen atom = 1.67 × 10 ^{27} kg)
Choices
Choice (4)  Response  

a.  3.05 m/s  
b.  3.5 m/s  
c.  32.5 m/s  
d.  3.25 m/s 
Question number: 14
» Dual Nature of Matter and Radiation » Einstein's Photoelectric Equation
Assertion (Ꭺ)
Photosensitivity of a metal is large if its work function is small.
Reason (Ꭱ)
Work function = hf _{0. } where f _{0} is the threshold frequency.
Choices
Choice (4)  Response  

a.  Both Ꭺ and Ꭱ are false  
b.  Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ  
c.  Ꭺ is true but Ꭱ is false  
d.  Ꭺ is false but Ꭱ is true 