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46.
Calculate the distance d between two successive planes when a first order diffraction of X-rays of wavelength 1.54 Å is
reflected at an angle of 11.29o.
- A.3.93 Å
- B.3.13 Å
- C.2.57 Å
- D.2.07 Å
- Answer & Explanation
- Report
Answer : [A]
Explanation :
Explanation :
47.
Calculate the wavelength when the interplanar distance in a crystal used for a first order Xray
diffraction is 2 Å and the angle of incidence of X-rays is 9o.
- A.0.5247 Å
- B.0.6256 Å
- C.0.7238 Å
- D.0.4123 Å
- Answer & Explanation
- Report
Answer : [B]
Explanation :
Explanation :
48.
There are _______ types of centred unit cells.
- A.two
- B.three
- C.four
- D.five
- Answer & Explanation
- Report
Answer : [B]
Explanation :
Explanation :
49.
According to Bravais, lattice points can be arranged in a maximum of ________ types.
- A.7
- B.14
- C.32
- D.230
- Answer & Explanation
- Report
Answer : [B]
Explanation :
Explanation :
50.
Crystals can be classified into ______ basic crystal habits.
- A.3
- B.7
- C.14
- D.4
- Answer & Explanation
- Report
Answer : [B]
Explanation :
Explanation :
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