In an insulator, the valence band is
A) fully occupied
B) fully empty
C) half filled
D) half charged
Correct Answer:
Verified
Q8: Quantum of electromagnetic energy is called
A)particles
B)photons
C)waves
D)energy
Q9: In photoelectric effect, electrons should be removed
Q10: Light interacts with matter as
A)wave
B)particle
C)both A and
Q11: When white light is passed through cool
Q12: Wavelength of ultraviolet region of electromagnetic spectrum
Q14: Number of protons in an atom determine
A)chemical
Q15: In β+ decay, an UP quark becomes
A)a
Q16: Most of the space in an atom
Q17: A proton is made up of
A)one up
Q18: Neutrinos have electric charge of
A)zero
B)1
C)2
D)3
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