Energy of the Electron & Energy Levels

Energy of the Electron & Energy Levels · Kinetic, potential & total energy

• (a)$\frac{e^2}{2r^2}$
• (b)$\frac{e^2}{r^2}$
• (c)$\frac{e^2}{2r}$
• (d)$\frac{e^2}{4r}$

Energy of the Electron & Energy Levels · Kinetic, potential & total energy

• (a)A
• (b)B
• (c)C
• (d)D

Energy of the Electron & Energy Levels · Kinetic, potential & total energy

• (a)$\frac{e^2}{2r^2}$
• (b)$\frac{e^2}{r}$
• (c)$\frac{e^2}{2r}$
• (d)$\frac{e^2}{r^2}$

Energy of the Electron & Energy Levels · Ionisation & excitation energy

• (a)$-10.2\text{ eV}$
• (b)$-3.4\text{ eV}$
• (c)$10.2\text{ eV}$
• (d)$13.6\text{ eV}$

Energy of the Electron & Energy Levels · Kinetic, potential & total energy

• (a)$E \propto L$
• (b)$E \propto L^{-1}$
• (c)$E \propto L^{-2}$
• (d)$E \propto L^{2}$

Energy of the Electron & Energy Levels · Energy levels of H & H-like ions

• (a)$\frac{16E}{3}$
• (b)$\frac{16E}{9}$
• (c)$\frac{4E}{3}$
• (d)$\frac{4E}{9}$

Energy of the Electron & Energy Levels · Energy levels of H & H-like ions

• (a)-1.51
• (b)-0.85
• (c)-0.38
• (d)-0.28

Energy of the Electron & Energy Levels · Energy levels of H & H-like ions

• (a)$\frac{1}{9}$
• (b)$\frac{1}{64}$
• (c)$\frac{1}{27}$
• (d)$\frac{1}{8}$

Energy of the Electron & Energy Levels · Energy levels of H & H-like ions

• (a)4
• (b)2
• (c)$\frac{1}{2}$
• (d)$\frac{1}{4}$

Energy of the Electron & Energy Levels · Energy levels of H & H-like ions

• (a)1
• (b)4
• (c)3
• (d)2

Energy of the Electron & Energy Levels · Energy levels of H & H-like ions

• (a)(A), (B) only
• (b)(A), (D) only
• (c)(A), (C) only
• (d)(B), (D) only

Energy of the Electron & Energy Levels · Energy level diagrams

• (a)$4000\ \text{\AA}$
• (b)$6000\ \text{\AA}$
• (c)$2000\ \text{\AA}$
• (d)$3000\ \text{\AA}$

Energy of the Electron & Energy Levels · Kinetic, potential & total energy

• (a)potential energy increases and K.E. decreases.
• (b)potential energy decreases and K.E. increases.
• (c)both K.E. and potential energy will increase.
• (d)both K.E. and potential energy decreases.

Energy of the Electron & Energy Levels · Kinetic, potential & total energy

• (a)$2E = 3U$
• (b)$E = U$
• (c)$2E = U$
• (d)$E = 2U$

Energy of the Electron & Energy Levels · Kinetic, potential & total energy

• (a)4
• (b)1
• (c)$\frac{1}{2}$
• (d)$\frac{1}{4}$

Energy of the Electron & Energy Levels · Ionisation & excitation energy

• (a)10.2 eV
• (b)13.6 eV
• (c)$-$10.2 eV
• (d)$-$3.4 eV

Energy of the Electron & Energy Levels · Kinetic, potential & total energy

• (a)Acceleration of electron in $n = 2$ orbit is less than that in $n = 1$ orbit.
• (b)Angular momentum of electron in $n = 2$ orbit is more than that in $n = 1$ orbit.
• (c)Kinetic energy of electron in $n = 2$ orbit is less than that in $n = 1$ orbit.
• (d)Potential energy of electron in $n = 2$ orbit is less than that in $n = 1$ orbit.

Energy of the Electron & Energy Levels · Energy levels of H & H-like ions

• (a)$\frac{4E}{9}$
• (b)$\frac{4E}{3}$
• (c)$\frac{16E}{9}$
• (d)$\frac{16E}{3}$

Energy of the Electron & Energy Levels · Energy levels of H & H-like ions

• (a)$\frac{25E}{36}$
• (b)$\frac{36E}{25}$
• (c)$\frac{3E}{5}$
• (d)$\frac{5E}{3}$

Energy of the Electron & Energy Levels · Energy levels of H & H-like ions

Numerical answer type. Work it out, then open the answer.

Energy of the Electron & Energy Levels · Energy level diagrams

• (a)$\lambda_{3} > \lambda_{2},\ \lambda_{1} = 2\lambda_{2}$
• (b)$\lambda_{3} > \lambda_{2},\ \lambda_{1} = 4\lambda_{2}$
• (c)$\lambda_{1} > \lambda_{2},\ \lambda_{2} = 2\lambda_{3}$
• (d)$\lambda_{2} > \lambda_{1},\ \lambda_{2} = 2\lambda_{3}$

Energy of the Electron & Energy Levels · Kinetic, potential & total energy

• (a)directly proportional to $n$
• (b)inversely proportional to $n$
• (c)directly proportional to $n^2$
• (d)inversely proportional to $n^2$

Energy of the Electron & Energy Levels · Energy levels of H & H-like ions

• (a)$-13.6\text{ eV}$
• (b)$-27.2\text{ eV}$
• (c)$-3.4\text{ eV}$
• (d)$-54.4\text{ eV}$

Energy of the Electron & Energy Levels · Ionisation & excitation energy

• (a)$13.6\text{ eV}$
• (b)$6.8\text{ eV}$
• (c)$1.51\text{ eV}$
• (d)$3.4\text{ eV}$

Energy of the Electron & Energy Levels · Energy level diagrams

• (a)A
• (b)C
• (c)B
• (d)D

Energy of the Electron & Energy Levels · Energy levels of H & H-like ions

• (a)$-1.5$ eV
• (b)$-1.6$ eV
• (c)$-1.3$ eV
• (d)$-1.4$ eV

Energy of the Electron & Energy Levels · Ionisation & excitation energy

Numerical answer type. Work it out, then open the answer.

Energy of the Electron & Energy Levels · Energy level diagrams

• (a)C
• (b)B
• (c)A
• (d)D

Energy of the Electron & Energy Levels · Kinetic, potential & total energy

• (a)All K, P and E increase.
• (b)K decreases, P and E increase.
• (c)P decreases, K and E increase.
• (d)K increases, P and E decrease.

Energy of the Electron & Energy Levels · Energy levels of H & H-like ions

• (a)1: 4
• (b)4: 1
• (c)4: 9
• (d)9: 4

Energy of the Electron & Energy Levels · Kinetic, potential & total energy

• (a)Kinetic energy, potential energy and total energy decreases
• (b)Kinetic energy and total energy decreased but potential energy increases
• (c)Kinetic energy increases but potential energy and total energy decreases
• (d)Kinetic energy decreases, potential energy increases but total energy remains the same.

Energy of the Electron & Energy Levels · Kinetic, potential & total energy

• (a)$2 : 1$
• (b)$1 : -1$
• (c)$+1 : 1$
• (d)$-1 : 2$

Energy of the Electron & Energy Levels · Kinetic, potential & total energy

• (a)is increased
• (b)is zero
• (c)is decreased
• (d)remains unchanged

Energy of the Electron & Energy Levels · Kinetic, potential & total energy

• (a)$E \propto L^{-1}$
• (b)$E \propto L$
• (c)$E \propto L^{-2}$
• (d)$E \propto L^{2}$

Energy of the Electron & Energy Levels · Energy levels of H & H-like ions

• (a)$E_{3} = \frac{4E}{9}$
• (b)$E_{3} = \frac{16E}{3}$
• (c)$E_{3} = \frac{16E}{9}$
• (d)$E_{3} = \frac{4E}{3}$

Energy of the Electron & Energy Levels · Energy levels of H & H-like ions

• (a)8
• (b)6
• (c)1
• (d)4

Energy of the Electron & Energy Levels · Energy level diagrams

• (a)The series limit of Lyman series, second member of Balmer series and second member of Paschen series.
• (b)The ionization potential of hydrogen, second member of Balmer series and third member of Paschen series.
• (c)The series limit of Lyman series, third member of Balmer series and second member of Paschen series.
• (d)The first member of the Lyman series, third member of Balmer series and second member of Paschen series.

Energy of the Electron & Energy Levels · Kinetic, potential & total energy

• (a)$E_n = -13.6 \times n^2\text{ eV}$
• (b)$E_n = \frac{13.6}{n^2}\text{ eV}$
• (c)$E_n = -\frac{13.6}{n^2}\text{ eV}$
• (d)$E_n = -\frac{1.36}{n^2}\text{ eV}$

Energy of the Electron & Energy Levels · Energy level diagrams

• (a)B, C
• (b)A, C
• (c)C, D
• (d)A, D

Energy of the Electron & Energy Levels · Kinetic, potential & total energy

• (a)3.4 eV, – 6.8 eV
• (b)3.4 eV, 3.4 eV
• (c)– 3.4 eV, – 3.4 eV
• (d)– 3.4 eV, – 6.8 eV

Energy of the Electron & Energy Levels · Ionisation & excitation energy

• (a)13.60 eV
• (b)6.04 eV
• (c)48.36 eV
• (d)54.40 eV

Energy of the Electron & Energy Levels · Kinetic, potential & total energy

• (a)1: 1
• (b)1: -1
• (c)2: -1
• (d)1: -2

Energy of the Electron & Energy Levels · Ionisation & excitation energy

• (a)$20\text{ eV}$
• (b)$34\text{ eV}$
• (c)$79\text{ eV}$
• (d)$109\text{ eV}$

Energy of the Electron & Energy Levels · Energy level diagrams

• (a)r = 1/3
• (b)r = 4/3
• (c)r = 2/3
• (d)r = 3/4

Energy of the Electron & Energy Levels · Kinetic, potential & total energy

• (a)kinetic energy decreases, potential energy increases but total energy remains same
• (b)kinetic energy and total energy decrease but potential energy increases
• (c)its kinetic energy increases but potential energy and total energy decrease
• (d)kinetic energy, potential energy and total energy decrease

Energy of the Electron & Energy Levels · Ionisation & excitation energy

• (a)122.4 eV
• (b)30.6 eV
• (c)13.6 eV
• (d)3.4 eV

Energy of the Electron & Energy Levels · Ionisation & excitation energy

• (a)$36.3\text{ eV}$
• (b)$108.8\text{ eV}$
• (c)$122.4\text{ eV}$
• (d)$12.1\text{ eV}$

Energy of the Electron & Energy Levels · Energy levels of H & H-like ions

• (a)$-$ 13.6 eV
• (b)$-$ 27.2 eV
• (c)$-$ 54.4 eV
• (d)$-$ 6.8 eV

Energy of the Electron & Energy Levels · Ionisation & excitation energy

• (a)10.2 eV
• (b)0
• (c)3.4 eV
• (d)6.8 eV

Energy of the Electron & Energy Levels · Kinetic, potential & total energy

• (a)6.8 eV
• (b)13.6 eV
• (c)1.7 eV
• (d)3.4 eV.

Energy of the Electron & Energy Levels · Kinetic, potential & total energy

• (a)3.4 eV
• (b)6.8 eV
• (c)$-$ 3.4 eV
• (d)$-$ 6.8 eV

Energy of the Electron & Energy Levels · Energy level diagrams

• (a)$iv$
• (b)$iii$
• (c)$ii$
• (d)$i$

Energy of the Electron & Energy Levels · Energy level diagrams

• (a)$\lambda_{3} = \lambda_{1} + \lambda_{2}$
• (b)$\lambda_{3} = \frac{\lambda_{1}\lambda_{2}}{\lambda_{1} + \lambda_{2}}$
• (c)$\lambda_{1} + \lambda_{2} + \lambda_{3} = 0$
• (d)$\lambda_{3}^{2} = \lambda_{1}^{2} + \lambda_{2}^{2}$

Energy of the Electron & Energy Levels · Ionisation & excitation energy

• (a)${}^{14}_{7}\text{N}$
• (b)${}^{133}_{55}\text{Cs}$
• (c)${}^{40}_{18}\text{Ar}$
• (d)${}^{16}_{8}\text{O}$

Energy of the Electron & Energy Levels · Ionisation & excitation energy

• (a)$30.6\text{ eV}$
• (b)$13.6\text{ eV}$
• (c)$3.4\text{ eV}$
• (d)$122.4\text{ eV}$

Energy of the Electron & Energy Levels · Ionisation & excitation energy

• (a)$10.2\text{ eV}$
• (b)$0\text{ eV}$
• (c)$3.4\text{ eV}$
• (d)$6.8\text{ eV}$

Energy of the Electron & Energy Levels · Energy levels of H & H-like ions

• (a)$-27.2$ eV
• (b)$-52.4$ eV
• (c)$-3.4$ eV
• (d)$-6.8$ eV.

Energy of the Electron & Energy Levels · Energy levels of H & H-like ions

• (a)$-0.54$ eV
• (b)$-3.4$ eV
• (c)$-2.72$ eV
• (d)$-0.85$ eV

Energy of the Electron & Energy Levels · Kinetic, potential & total energy

• (a)both K.E. and P.E. increase
• (b)both K.E. and P.E. decrease
• (c)the P.E. decreases and K.E. increases
• (d)the P.E. increases and K.E. decreases.

Energy of the Electron & Energy Levels · Energy level diagrams

• (a)4, 5, 6
• (b)1, 2, 3, 4, 5, 6
• (c)1, 2, 3
• (d)1, 4, 6

Energy of the Electron & Energy Levels · Ionisation & excitation energy

• (a)1.51 eV
• (b)3.4 eV
• (c)13.6 eV
• (d)none of these

Energy of the Electron & Energy Levels · Energy level diagrams

• (a)$\lambda_{3} = \lambda_{1} + \lambda_{2}$
• (b)$\lambda_{3} = \frac{\lambda_{1}\lambda_{2}}{\lambda_{1} + \lambda_{2}}$
• (c)$\lambda_{1} + \lambda_{2} + \lambda_{3} = 0$
• (d)$\lambda_{3}^{2} = \lambda_{1}^{2} + \lambda_{2}^{2}$

Energy of the Electron & Energy Levels · Ionisation & excitation energy

• (a)13.6 eV
• (b)27.2 eV
• (c)6.8 eV
• (d)54.4 eV