# Dual Nature of Matter and Radiation-De-Broglie Relation (NEET Physics): Questions 13 - 18 of 18

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## Question number: 13

» Dual Nature of Matter and Radiation » De-Broglie Relation

MCQ▾

### Question

Velocity of a proton is . Associated de-Broglie wavelength is (Take h = 6.626 × 10 -34 J-s)

### Choices

Choice (4) Response

a.

2.64 × 10 -14 m

b.

2.64 × 10 -14 A

c.

2.64 × 10 -24 cm

d.

2.64 × 10 -24 mm

## Question number: 14

» Dual Nature of Matter and Radiation » De-Broglie Relation

MCQ▾

### Question

The de-Broglie wavelength of an electron is 0.2 Å. Calculate the potential difference (approximate) required to retard it to rest-

### Choices

Choice (4) Response

a.

3.76 × 10 3 V

b.

3.76 × l0 -3 V

c.

376.5 V

d.

3.76 × 10 3 eV

## Question number: 15

» Dual Nature of Matter and Radiation » De-Broglie Relation

MCQ▾

### Question

Slope of curve is-

(Where, V 0 = Stopping potential and ν = frequency)

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 16

» Dual Nature of Matter and Radiation » De-Broglie Relation

MCQ▾

### Question

The ratio of wavelength of deuteron & proton accelerated by an equal potential is,

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 17

» Dual Nature of Matter and Radiation » De-Broglie Relation

Appeared in Year: 2016

MCQ▾

### Question

Electrons of mass with De – Broglie wavelength fall on the target in a X – ray tube. The cutoff wavelength of the emitted X – ray is:

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 18

» Dual Nature of Matter and Radiation » De-Broglie Relation

Appeared in Year: 2017

MCQ▾

### Question

The de-Broglie wavelength of a neutron in thermal equilibrium with heavy water at a temperature (Kelvin) and mass , is –

### Choices

Choice (4) Response

a.

b.

c.

d.

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