Everyday Science MCQs

5120 MCQs  (Page 330 of 512)

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Rutherford bombarded _________________ particles in discovery of nucleus?
A. Gamma-rays
B. Alpha-rays
C. Beta-rays
D. X-rays
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The maximum number of orbitals present in a subshell that is represented by Azimuthal quantum number = 3 will be________________?
A. 1
B. 3
C. 5
D. 7
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When electron jump into orbit 1 then series obtained is___________________?
A. Lyman
B. Paschen
C. Pfund
D. Brackett
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Splitting of spectral lines when atoms are subjected to strong electric filed is called_________________?
A. Zeeman effect
B. Stark effect
C. Photoelectric effect
D. Compton effect
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Three quantum number have been derived from equation of____________________?
A. De-broglie
B. Plancks
C. Schrodinger
D. Heisenberg
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The letters s p d and f are used to represent which quantum numbers________________?
A. Principal
B. Azimuthal
C. Magnetic
D. Spin
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The atomic number of an element having maximum number of unpaired electrons in p-subshell is_______________?
A. 7
B. 10
C. 12
D. 16
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Colour of fluorescene produced by cathode rays depends upon________________?
A. Temperature
B. Pressure
C. Volume
D. Composition of glass
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Positive rays are produced__________________?
A. By burning of gas
B. By cooling of the gas
C. By the bombardment of cathode rays on gas molecules
D. From anode like cathode rays produced from cathode
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The relationship between energy of a photon of light and its frequency is given by________________?
A. De-broglie duel nature of matter
B. Bohrs model
C. Plancks quantum theory
D. Rutherfords atomic model
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Word of the Day
26 Jul
Simultaneously
at the same time.
ایک ہی وقت میں، ایک ساتھ، بیک وقت

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