01. Atomic Models
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Structure of Atom

238653 Who discovered that cathode rays are made up of electrons

1 William Crookes
2 G. J. Stoney
3 R. A. Millikan
4 J. J. Thomson
MPPET- 2009
Structure of Atom

238659 Which of the following statements is correct about the cathode rays?
1 These rays start from anode and move towards cathode.
2 They are visible with human eye.
3 In presence of electric and magnetic fields, they behave like positively charged particles.
4 Their characteristic does not depend on the nature of material electrode.

1 1
2 2
3 3
4 4
AP EAMCET (Engg.) 21.09.2020
Structure of Atom

238662 If the velocity of the electron in the hydrogen atom in its first orbit is $2.18 \times 10^6 \mathrm{~ms}^{-1}$, then will be the velocity of the electron in the second orbit of $\mathrm{Li}^{2+}$ ?

1 $2.18 \times 10^6 \mathrm{~ms}^{-1}$
2 $3.27 \times 10^6 \mathrm{~ms}^{-1}$
3 $6.54 \times 10^6 \mathrm{~ms}^{-1}$
4 $1.45 \times 10^6 \mathrm{~ms}^{-1}$
SCRA - 2009
Structure of Atom

238664 The wavelength of a spectral line emitted by hydrogen atom in the Lyman series is $\frac{16}{15 R} \mathrm{~cm}$.
What is the value of $n_2$ ? $(R=$ Rydberg constant)

1 2
2 3
3 4
4 1
AIIMS-2011
Structure of Atom

238666 Match the following
|List-I |List-II|
|----|----|
|A. Chadwick|I. Cathode rays|
|B. Rutherford|II. X-rays spectra|
|C. Mosley|III. Discovery of neutrons|
|D. J.J. Thomson|IV. Nuclear atom model The correct match is|
$\quad \mathrm{A} \quad \mathrm{B} \quad \mathrm{C} \quad \mathrm{D}$

1 IV I II III
2 III II IV I
3 III II I IV
4 III IV II I
TS-EAMCET (Engg.)
NEET DIGITAL LIBRARY
Structure of Atom

238653 Who discovered that cathode rays are made up of electrons

1 William Crookes
2 G. J. Stoney
3 R. A. Millikan
4 J. J. Thomson
MPPET- 2009
Structure of Atom

238659 Which of the following statements is correct about the cathode rays?
1 These rays start from anode and move towards cathode.
2 They are visible with human eye.
3 In presence of electric and magnetic fields, they behave like positively charged particles.
4 Their characteristic does not depend on the nature of material electrode.

1 1
2 2
3 3
4 4
AP EAMCET (Engg.) 21.09.2020
Structure of Atom

238662 If the velocity of the electron in the hydrogen atom in its first orbit is $2.18 \times 10^6 \mathrm{~ms}^{-1}$, then will be the velocity of the electron in the second orbit of $\mathrm{Li}^{2+}$ ?

1 $2.18 \times 10^6 \mathrm{~ms}^{-1}$
2 $3.27 \times 10^6 \mathrm{~ms}^{-1}$
3 $6.54 \times 10^6 \mathrm{~ms}^{-1}$
4 $1.45 \times 10^6 \mathrm{~ms}^{-1}$
SCRA - 2009
Structure of Atom

238664 The wavelength of a spectral line emitted by hydrogen atom in the Lyman series is $\frac{16}{15 R} \mathrm{~cm}$.
What is the value of $n_2$ ? $(R=$ Rydberg constant)

1 2
2 3
3 4
4 1
AIIMS-2011
Structure of Atom

238666 Match the following
|List-I |List-II|
|----|----|
|A. Chadwick|I. Cathode rays|
|B. Rutherford|II. X-rays spectra|
|C. Mosley|III. Discovery of neutrons|
|D. J.J. Thomson|IV. Nuclear atom model The correct match is|
$\quad \mathrm{A} \quad \mathrm{B} \quad \mathrm{C} \quad \mathrm{D}$

1 IV I II III
2 III II IV I
3 III II I IV
4 III IV II I
TS-EAMCET (Engg.)
Join With Us for More Updates
Structure of Atom

238653 Who discovered that cathode rays are made up of electrons

1 William Crookes
2 G. J. Stoney
3 R. A. Millikan
4 J. J. Thomson
MPPET- 2009
Structure of Atom

238659 Which of the following statements is correct about the cathode rays?
1 These rays start from anode and move towards cathode.
2 They are visible with human eye.
3 In presence of electric and magnetic fields, they behave like positively charged particles.
4 Their characteristic does not depend on the nature of material electrode.

1 1
2 2
3 3
4 4
AP EAMCET (Engg.) 21.09.2020
Structure of Atom

238662 If the velocity of the electron in the hydrogen atom in its first orbit is $2.18 \times 10^6 \mathrm{~ms}^{-1}$, then will be the velocity of the electron in the second orbit of $\mathrm{Li}^{2+}$ ?

1 $2.18 \times 10^6 \mathrm{~ms}^{-1}$
2 $3.27 \times 10^6 \mathrm{~ms}^{-1}$
3 $6.54 \times 10^6 \mathrm{~ms}^{-1}$
4 $1.45 \times 10^6 \mathrm{~ms}^{-1}$
SCRA - 2009
Structure of Atom

238664 The wavelength of a spectral line emitted by hydrogen atom in the Lyman series is $\frac{16}{15 R} \mathrm{~cm}$.
What is the value of $n_2$ ? $(R=$ Rydberg constant)

1 2
2 3
3 4
4 1
AIIMS-2011
Structure of Atom

238666 Match the following
|List-I |List-II|
|----|----|
|A. Chadwick|I. Cathode rays|
|B. Rutherford|II. X-rays spectra|
|C. Mosley|III. Discovery of neutrons|
|D. J.J. Thomson|IV. Nuclear atom model The correct match is|
$\quad \mathrm{A} \quad \mathrm{B} \quad \mathrm{C} \quad \mathrm{D}$

1 IV I II III
2 III II IV I
3 III II I IV
4 III IV II I
TS-EAMCET (Engg.)
For More Updates join with Us
Structure of Atom

238653 Who discovered that cathode rays are made up of electrons

1 William Crookes
2 G. J. Stoney
3 R. A. Millikan
4 J. J. Thomson
MPPET- 2009
Structure of Atom

238659 Which of the following statements is correct about the cathode rays?
1 These rays start from anode and move towards cathode.
2 They are visible with human eye.
3 In presence of electric and magnetic fields, they behave like positively charged particles.
4 Their characteristic does not depend on the nature of material electrode.

1 1
2 2
3 3
4 4
AP EAMCET (Engg.) 21.09.2020
Structure of Atom

238662 If the velocity of the electron in the hydrogen atom in its first orbit is $2.18 \times 10^6 \mathrm{~ms}^{-1}$, then will be the velocity of the electron in the second orbit of $\mathrm{Li}^{2+}$ ?

1 $2.18 \times 10^6 \mathrm{~ms}^{-1}$
2 $3.27 \times 10^6 \mathrm{~ms}^{-1}$
3 $6.54 \times 10^6 \mathrm{~ms}^{-1}$
4 $1.45 \times 10^6 \mathrm{~ms}^{-1}$
SCRA - 2009
Structure of Atom

238664 The wavelength of a spectral line emitted by hydrogen atom in the Lyman series is $\frac{16}{15 R} \mathrm{~cm}$.
What is the value of $n_2$ ? $(R=$ Rydberg constant)

1 2
2 3
3 4
4 1
AIIMS-2011
Structure of Atom

238666 Match the following
|List-I |List-II|
|----|----|
|A. Chadwick|I. Cathode rays|
|B. Rutherford|II. X-rays spectra|
|C. Mosley|III. Discovery of neutrons|
|D. J.J. Thomson|IV. Nuclear atom model The correct match is|
$\quad \mathrm{A} \quad \mathrm{B} \quad \mathrm{C} \quad \mathrm{D}$

1 IV I II III
2 III II IV I
3 III II I IV
4 III IV II I
TS-EAMCET (Engg.)
NEET DIGITAL LIBRARY
Structure of Atom

238653 Who discovered that cathode rays are made up of electrons

1 William Crookes
2 G. J. Stoney
3 R. A. Millikan
4 J. J. Thomson
MPPET- 2009
Structure of Atom

238659 Which of the following statements is correct about the cathode rays?
1 These rays start from anode and move towards cathode.
2 They are visible with human eye.
3 In presence of electric and magnetic fields, they behave like positively charged particles.
4 Their characteristic does not depend on the nature of material electrode.

1 1
2 2
3 3
4 4
AP EAMCET (Engg.) 21.09.2020
Structure of Atom

238662 If the velocity of the electron in the hydrogen atom in its first orbit is $2.18 \times 10^6 \mathrm{~ms}^{-1}$, then will be the velocity of the electron in the second orbit of $\mathrm{Li}^{2+}$ ?

1 $2.18 \times 10^6 \mathrm{~ms}^{-1}$
2 $3.27 \times 10^6 \mathrm{~ms}^{-1}$
3 $6.54 \times 10^6 \mathrm{~ms}^{-1}$
4 $1.45 \times 10^6 \mathrm{~ms}^{-1}$
SCRA - 2009
Structure of Atom

238664 The wavelength of a spectral line emitted by hydrogen atom in the Lyman series is $\frac{16}{15 R} \mathrm{~cm}$.
What is the value of $n_2$ ? $(R=$ Rydberg constant)

1 2
2 3
3 4
4 1
AIIMS-2011
Structure of Atom

238666 Match the following
|List-I |List-II|
|----|----|
|A. Chadwick|I. Cathode rays|
|B. Rutherford|II. X-rays spectra|
|C. Mosley|III. Discovery of neutrons|
|D. J.J. Thomson|IV. Nuclear atom model The correct match is|
$\quad \mathrm{A} \quad \mathrm{B} \quad \mathrm{C} \quad \mathrm{D}$

1 IV I II III
2 III II IV I
3 III II I IV
4 III IV II I
TS-EAMCET (Engg.)