In the wave mechanical theory, the maximum of the charge distribution in the ground state occurs for a distance from the nucleus equal to

Electronics and Communication Engineering (ECE) : Materials and Components - Quiz(MCQ)

first Bohr radius

second Bohr radius

third Bohr radius

either first or second Bohr radius

Correct Answer : Option (A) : first Bohr radius

Explanation : The total charge associated with an electron moving about nucleus in the ground state of hydrogen atom is given by 4π²rp(r)dr.

This integrand has a maximum value at r = radius of first Bohr orbit.

Recently Updated in Materials and Components Questions

Magnetic hysteresis phenomenon is explained by

domain rotation

motion of domain walls

motion of domain walls and domain rotation

None of the above

Correct Answer : motion of domain walls and domain rotation

A circular sphere mile is the area of cross-section of a wire

having a radius equal to 1 miles

having a circumference equal to 1 miles

having a circumference equal to 0 miles

having a diameter equal to 1 miles

Correct Answer : having a diameter equal to 1 miles

For small size high frequency coils, the most common core material is

steel

ferrite

air

powdered iron

Correct Answer : air

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