Beta Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>BEGINNER'S BOX>Q 10

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Earn 100

A $1 kW$ radio transmitter operates at a frequency of $800 Hz$ . How many photons per second does it emit?

Given: Planck's constant $= 6.626 \times 10^{- 34} Js$

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Important Questions on Structure of Atom

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Beta Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>BEGINNER'S BOX>Q 14

The ionisation energy of a hydrogen atom is

13.6 eV

. The energy of the ground level in doubly ionised lithium is:

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Beta Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>BEGINNER'S BOX>Q 18

The line spectra of two elements are not identical because:

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Beta Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>BEGINNER'S BOX>Q 19

In which of the following transitions will the wavelength be minimum?

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Beta Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>BEGINNER'S BOX>Q 20

The wavelength of the third line of the Balmer series for a hydrogen atom is

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Beta Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>BEGINNER'S BOX>Q 21

When the electron of a hydrogen atom jumps from

n = 4

to

n = 1

state, the number of spectral lines emitted is

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Beta Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>BEGINNER'S BOX>Q 23

Select the incorrect statements among the following.

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Beta Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>BEGINNER'S BOX>Q 24

If the kinetic energy of an electron is increased four times, the wavelength of the de-Broglie wave associated with it would become

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Beta Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>BEGINNER'S BOX>Q 25

Velocity of de-Broglie wave is given by: