In nuclear fission, the percentage of mass converted into energy is about
Options
(a) 10% (b) 0.01% (c) 0.10% (d) 1%
Correct Answer:
0.10%
Explanation:
No explanation available. Be the first to write […]
In Bohr model of hydrogen atom, the force on the electron depends on the principal quantum number (n) as
Options
(a) independent of n (b) F∞1/n⁵ (c) F∞1/n⁴ (d) F∞1/n³
Correct Answer:
F∞1/n⁴
The de-Broglie wavelength of an electron in the first Bohr orbit is
Options
(a) Equal to one-fourth the circumference of the first orbit (b) Equal to half the circumference of first orbit (c) […]
An atom bomb weighing 1 kg explodes releasing 9×10¹³ J of energy. What percentage of mass is converted into energy?
Options
(a) 0 .1% (b) 1% (c) 2% (d) 10%
Correct Answer:
0 […]
Electron in hydrogen atom first jumps from third excited state to second excited state and then from second excited to the first excited state. The ratio of the wavelengths λ₁:λ₂ emitted in the two cases […]
The wavelength of the first line of Lyman series for hydrogen atom is equal to that of the second line of Balmer series for a hydrogen like ion. The atomic number Z of hydrogen like […]
Which pair is isotonic?
Options
(a) ₇N¹³,₇N¹⁴ (b) ₆C¹⁴,₆C¹² (c) ₆C¹⁴,₇N¹⁴ (d) ₇N¹³,₆C¹²
Correct Answer:
₇N¹³,₆C¹²
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting […]
Which of the following is suitable for the fusion process?
Options
(a) Heavy nuclei (b) Light nuclei (c) Atom bomb (d) Radioactive decay
Correct Answer:
Light nuclei
Explanation:
No explanation available. Be the […]
If the series limit of Lyman series for hydrogen atom is equal to the series limit of Balmer series for a hydrogen like atom, then atomic number of this hydrogen like atom is
Options […]
The order of radius of the nucleus of an atom is
Options
(a) 10⁻¹⁰ m (b) 10⁻¹² m (c) 10⁻¹⁵ m (d) 10⁻¹⁷ m
Correct Answer:
10⁻¹⁵ m
Explanation:
No explanation available. Be […]
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