A. he/ev
B. he/Vc
C. eV/h
D. impossible to predict
A. A & B
B. B & C
C. A & C
D. A B & C
A. increases
B. it decreases
C. it remains same
D. sometimes increases and sometimes decreases
A. Cathode rays
B. Positive rays
C. γ-rays
D. Beta rays
X-rays are similar in nature to_______________? Read More »
Atomic Spectra, Physics Mcqs A. γ-rays
B. Infra red radiation
C. Visible light
D. Ultraviolet rays
In an electronic transition atom cannot emit______________? Read More »
Atomic Spectra, Physics Mcqs A. ultraviolet rays
B. X-rays
C. infra red radiation
D. visible radiation
Radiation with wavelength longer than red lights______________? Read More »
Atomic Spectra, Physics Mcqs A. pair production
B. Compton effect
C. annihilation of matter
D. X-rays production
Reverse process of photoelectric effect is_______________? Read More »
Atomic Spectra, Physics Mcqs A. applied voltage
B. frequency
C. source
D. all of the above
The penetrating power of X-rays depends on their______________? Read More »
Atomic Spectra, Physics Mcqs A. 4th orbit
B. 5th orbit
C. 3rd orbit
D. 2nd orbit
Bracket series is obtained when all transition of electron terminate on_______________? Read More »
Atomic Spectra, Physics Mcqs A. Ke2/rn
B. Ke2/rn2
C. ÀKe2/rn
D. ÀKe2/rn2
