Wavelength of ultraviolet region of electromagnetic spectrum is
A) 121 nm
B) 120 nm
C) 119 nm
D) 130 nm
Correct Answer:
Verified
Q7: Gas atoms that exert negligible electrical forces
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
Q13: In an insulator, the valence band is
A)fully
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
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