EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 1 - Structure of Atom>VITEEE 2019 Shift 1>Q 1

EASY

VITEEE

IMPORTANT

Earn 100

Arrange the following particles in an increasing order of values of $e / m$ ratio: electron $(e),$ proton $(p),$ neutron $(n)$ and $α$ -particle $(α) -$

43.33% studentsanswered this correctly

Important Questions on Structure of Atom

EASY

VITEEE

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 1 - Structure of Atom>VITEEE 2019 Shift 1>Q 2

The wavelengths of two photons are

2000 Å

and

4000 Å

, respectively. What is the ratio of their energies?

EASY

VITEEE

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 1 - Structure of Atom>VITEEE 2018 Shift 1>Q 3

The energies

E_{1}

and

E_{2}

of two radiations are

25 eV

and

50 eV

, respectively. The relation between their wavelengths i.e.,

λ_{1}

and

λ_{2}

will be

MEDIUM

VITEEE

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 1 - Structure of Atom>VITEEE 2018 Shift 1>Q 4

Ionisation energy of

{He}^{+}

is

19 .6 \times 10^{- 18} J

per atom. The energy of the first stationary state

(n = 1)

of

{Li}^{2+}

per atom is

EASY

VITEEE

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 1 - Structure of Atom>VITEEE 2017>Q 5

The value of Planck's constant is

6 .63 \times 10^{- 34} Js

and the velocity of light is

3 .0 \times 10^{8} {ms}^{- 1}

. Which value is the closest to the wavelength in nanometers of a quantum of light, with a frequency of

8 \times 10^{15} s^{- 1}

?

MEDIUM

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IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 1 - Structure of Atom>VITEEE 2019 Shift 1>Q 6

The uncertainty in the position and velocity of particle are

10^{- 10} m

and

5.27 \times 10^{- 24} m s^{- 1}

,respectively. Calculate the mass of the particle is

(h = 6.625 \times 10^{- 34} Js)