The relation between force acting on the electron and principle quantum number in hydrogen atom is
(A) F ∝ n4
(B) F ∝ n2
(C) F ∝ \(\frac{1}{n^2}\)
(D) F ∝ \(\frac{1}{n^4}\)
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If the angle between moving charge and magnetic field is 0, the magnetic force acting on the charge is given by …………….
Correct option is A) qvB
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The ratio of molecular weight of hydrogen and oxygen in water is 1 : 8. (The relation between hydrogen and oxygen in linear
Correct option is (A) y = 8x \(\because\) Quantities of hydrogen and oxygen are x and y and their quantity are in ratio 1 : 8. \(\therefore\) x : y = 1 : 8 \(\Rightarrow\) \(\frac xy=\frac18\) \(\Rightarrow\) y =...
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The ratio of molecular weight of hydrogen and oxygen in water is 1 : 8. (The relation between hydrogen and oxygen in linear
2 Answers
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Relation between force of attraction and distance between two objects is ……… A) F ∝ 1/R
B) F ∝ \(\cfrac{1}{R^2}\)
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Pressure = ………… A) Force B) Force x area C) Area / force D) Force / area
D) Force / area
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The force acting in normal direction is A) gravitational force
D) normal force
2 Answers 1 views
If A={a,b,c,d}, then on A . (i) write the identity relation `I_(A)` . (ii) write a reflexive relation which is not the identity relation.
Correct Answer - (i) {(a,a),(b,b),(c,c),(d,d)} `" "` {(a,a),(b,b),(c,c),(d,d),(a,c),(b,d)}
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If the wave number of the first line in the Balmer series of hydrogen atom is `1500cm^(-1)`, the wave number of the first line of the Balmer series of
Correct Answer - A `bar(v) = bar(v)_(H) xx z^(2)`
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The gravitational force between two particles of masses `m_(1)` and `m_(2)` separeted by the same distance, then the gravitational force between them
Correct Answer - C Gravitational force does not depends on the medium between the masses.
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If an organisation does not provide the right place for physical and human resources in an organisation, which principle principle is violated ? What
Principle of Order.
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