In an hydrogen atom, an electron moves in the field of a proton. The stability o

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Question
In an hydrogen atom, an electron moves in the field of a proton. The stability of orbit requires equilibrium between coulomb's force and centrifugal force.
Options
A. True
B. False

Correct Answer

True

Explanation

Orbit is stable only if the two forces are equal and opposite.

More questions

1. In which region of a CE bipolar transistor is collector current almost constant?
Options
A. Saturation region
B. Active region
C. Breakdown region
D. Both saturation and active region

4. In a broadcast superheterodyne receiver
Options
A. the local oscillator operates below the signal frequency
B. local oscillator frequency is normally double the IF
C. RF amplifier normally works at kHz above the carrier frequency
D. mixer input must be tuned to the signal frequency

6. Which one of the following potential does not satisfy Laplace's equations?
Options
A. v = 10 xy
B. v = p cos ?
C.
D. v = f cos ? + 10

7. The rate at which information can be carried through a communication channel depends on
Options
A. carrier frequency
B. bandwidth
C. transmission loss
D. transmitted power

9. It is known that noise phase modulates the FM wave. As the noise side band frequency approaches the carrier frequency, the noise amplitude
Options
A. will increase
B. will decrease
C. will remain constant
D. will reduce to negligible value

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