A) Mass-number - Atomic number = Number of neutrons B) Mass-number - Atomic number = Number of proton C) Number of neutrons - Number of protons = Mass number D) Number of electrons outside the nucleus - Number of protons = Mass number. Ans : (A)
A) angle of incidence of radiation B) surface condition of the surface C) wavelength of the incident radiation D) intensity of the incident radiation. Ans : (C)
A) 50 % B) 225 % C) 250 % D) 400 %. Ans : (D)
A) wire wound resistors B) thick film resistors C) thin film resistors D) carbon resistor. Ans : (A)
A) 3 B) 5 C) 6 D) 7. Ans : (A)
A) one hour B) one month C) one week D) 24 hours. Ans : (D)
A) always remains constant B) may be either increased or decreased C) is always decreased D) is always increased. Ans : (C)
A) all aligned parallel B) partially aligned anti-parallel without exactly cancelling our sub-lattice magnetization C) randomly oriented D) all aligned anti-parallel such that the sub-lattice cancels out exactly. Ans : (B)
A) resistive conductors B) dielectrics C) super-conductors D) semi-conductors. Ans : (B)
A) 76 days B) 33 days C) 5 days D) 3.8 days. Ans : (C)