Physics Crash Course MHT-CET>Chapter 23 - Atoms, Molecules and Nuclei>Exercise 1>Q 212

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A particle of mass $4 m$ at rest decays into two particles of masses $m$ and $3 m$ having non-zero velocities. The ratio of the de Broglie wavelengths of the particles $1$ and $2$ is

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Important Questions on Atoms, Molecules and Nuclei

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Physics Crash Course MHT-CET>Chapter 23 - Atoms, Molecules and Nuclei>Exercise 1>Q 213

Upon increasing the velocity of an electron, the de Broglie wavelength associated with it:

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Physics Crash Course MHT-CET>Chapter 23 - Atoms, Molecules and Nuclei>Exercise 1>Q 214

The ratio of the de Broglie wavelength of a particle to that of an electron is

1.813 \times 10^{- 4}

. The mass of the particle, if it moves three times faster than the electron is:

(m_{e} = 9 .1 \times 10^{- 31} kg)

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Physics Crash Course MHT-CET>Chapter 23 - Atoms, Molecules and Nuclei>Exercise 1>Q 215

An electron in metal at

27 ° C

has a de-Broglie wavelength of ...

(Given m_{e} = 9 .1 \times 10^{- 31} kg, k_{B} = 1 .38 \times 10^{- 23} J K^{- 1})

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Physics Crash Course MHT-CET>Chapter 23 - Atoms, Molecules and Nuclei>Exercise 1>Q 216

A particle of mass

5 m

at rest decays into two moving particles of masses

2 m

and

3 m

. What is the ratio of the de Broglie wavelengths of these particles?

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Physics Crash Course MHT-CET>Chapter 23 - Atoms, Molecules and Nuclei>Exercise 1>Q 217

If the mass of particle

A_{1}

is greater than the mass of particle

A_{2}

and both have the same de Broglie wavelength. Then

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Physics Crash Course MHT-CET>Chapter 23 - Atoms, Molecules and Nuclei>Exercise 1>Q 218

In the Davisson-Germer experiment, nickel crystal acts as

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Physics Crash Course MHT-CET>Chapter 23 - Atoms, Molecules and Nuclei>Exercise 1>Q 219

In Davisson-Germer experiment, when electron strike the Ni-crystal, then which of the following is obtained in the form of diffracted wave?

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Physics Crash Course MHT-CET>Chapter 23 - Atoms, Molecules and Nuclei>Exercise 1>Q 220

The de Broglie wavelength of a neutron corresponding to root mean square speed at

927 ° C

is

λ

. What will be the de Broglie wavelength of the neutron corresponding to root mean square speed at

27 ° C

?