Atomic Structure-De-Broglie's Relationship (NEET Chemistry): Questions 7 - 11 of 12

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Question number: 7

» Atomic Structure » De-Broglie's Relationship

MCQ▾

Question

A tennis ball have mass 6.0×102kg is moving with a speed of 62m/s. calculate the wavelength associated with the ball.

Choices

Choice (4) Response

a.

3.84 × 10 - 36m

b.

8.9×1034m

c.

5.6 × 10 - 34m

d.

1.8×1034m

Question number: 8

» Atomic Structure » De-Broglie's Relationship

MCQ▾

Question

If the kinetic energy of particle is doubled, de-Broglie wavelength becomes?

Choices

Choice (4) Response

a.

12times

b.

4times

c.

2times

d.

2times

Question number: 9

» Atomic Structure » De-Broglie's Relationship

MCQ▾

Question

Calculate the wavelength, if the kinetic energy of an electron is 4.55×1025J

(h=6.6×1034Jsec), mass of electron =9.1×1031kg)

Choices

Choice (4) Response

a.

0.12×104m

b.

1.02×104m

c.

0.92×105m

d.

0.72×106m

Question number: 10

» Atomic Structure » De-Broglie's Relationship

MCQ▾

Question

Which of the following is the de-Broglie wavelength associated with uncharged particles for gas molecules?

Choices

Choice (4) Response

a.

=h3mkT

b.

=hmkT.2

c.

=2hmkT

d.

Both b. and a. are correct

Question number: 11

» Atomic Structure » De-Broglie's Relationship

MCQ▾

Question

Calculate the wavelength associated with electron moving with a velocity of 1010cm/sec?

Choices

Choice (4) Response

a.

1.732A

b.

2.620A

c.

0.0772A

d.

1.602A

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