Atoms and Electrons – Exercise – 2

51. Mass of a proton is :

(a) 1.67 × 10^–24 kg
(b) 1.67 × 10^–25 kg
(c) 1.67 × 10^–26 kg
(d) 1.67 × 10^–27 kg

Answer
Answer : (d)
Explanation
No answer description available for this question. Let us discuss.

52. The kinetic energy of a bounded electron is …….. that of an unbounded electron.

(a) Less than
(b) Twice than
(c) Greater than
(d) Same as

Answer
Answer : (a)
Explanation
No answer description available for this question. Let us discuss.

53. Coulomb’s law for the force between electric charges most closely resembles with :

(a) Newton’s law of motion
(b) Law of conservation of energy
(c) Gauss theorem
(d) Newton’s law of gravitation

Answer
Answer : (d)
Explanation
No answer description available for this question. Let us discuss.

54. When separation between two charges is increased, the potential energy :

(a) Increases
(b) Decreases
(c) Remains constant
(d) Either a or b

Answer
Answer : (d)
Explanation
No answer description available for this question. Let us discuss.

55. The transferred-electron bulk effect occurs in :

(a) Germanium
(b) Gallium arsenide
(c) Silicon
(d) Metal-semiconductor junction

Answer
Answer : (b)
Explanation
No answer description available for this question. Let us discuss.
≡ LEVEL – Exercise – 1
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