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JEE 2020 Physics: Wave Nature of Matter Quiz (25.09.2019)
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Question 1
In Moseley’s law for characteristic X-rays is √ν = a(Z – b)
Question 2
If λ1 and λ2 are the wavelengths of characteristic X-rays and gamma rays respectively, then the relation between them is -
Question 3
Figure shows the intensity - wavelength relations of X-rays coming from two different coolidge tubes. The solid curve represents the relation for the tube A in which the potential difference between the target and the filament is VA and the atomic number of the target material is ZA. These quantities are VB and ZB for the other tube. Then -
Question 4
Which of the following radiations has the least wavelength?
Question 5
The kinetic energy of a free electron doubles. Its deBroglie wavelength changes by the factor
Question 6
A particle A of mass m and initial velocity v collides with a particle B of mass 
which is at rest. The collision is head on, and elastic. The ratio of the de-Broglie wavelengths 
after the collision is:
which is at rest. The collision is head on, and elastic. The ratio of the de-Broglie wavelengths after the collision is:Question 7
When the momentum of a proton is changed by an amount p0, then the corresponding change in the de-Broglie wavelength is found to be 0.25%. The original momentum of the proton was
Question 8
A particle is dropped from a height ‘H’. The de’Broglie wavelength of the particle depends on height as
Question 9
For what condition wave speed in sine wave is greater than the particle speed
Question 10
The characteristics of the electrons striking the target in a coolidge tube that determines the upper limit of frequency of continuous X-rays is-
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Sep 25JEE & BITSAT
