X - Rays (AIIMS Physics): Questions 5 - 7 of 7

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Question number: 5

» X - Rays » Bragg's Law

Appeared in Year: 2004

Assertion-Reason▾

Assertion (Ꭺ)

Crystalline solids can cause X-rays to diffract.

Reason (Ꭱ)

Interatomic distance in crystalline solids is of the order of 0.1 nm.

Choices

Choice (4) Response

a.

Ꭺ is false but Ꭱ is true

b.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

c.

Ꭺ is true but Ꭱ is false

d.

Both Ꭺ and Ꭱ are false

Question number: 6

» X - Rays » Bragg's Law

Appeared in Year: 1998

MCQ▾

Question

For the diffraction from a crystal with λ=1 and Bragg’s angle θ=600 , then for the second order diffraction d will be – [AIPMT]

Choices

Choice (4) Response

a.

0.55

b.

2.1

c.

0.75

d.

1.15

Question number: 7

» X - Rays » Moseley's Law

Appeared in Year: 2001

MCQ▾

Question

The inter-planer distance in a crystal is 2.8×108m . The value of maximum wavelength which can be diffracted – [AIPMT]

Choices

Choice (4) Response

a.

1.4×108m

b.

5.6×108m

c.

7.6×108m

d.

2.8×108m

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