Physics MCQs: Chapter 8+9

1) In Bragg’s equation, d represents

a)    Grading constant

b)   Slit separation

c)    Inter-planer spacing

d)   Displacement

2) While deriving Bragg’s equation, the effective path difference between the beams reflected from adjacent planes is

a)    dsinѲ

b)   2dsinѲ

c)    3dsinѲ

d)   4dsinѲ

3) X-rays diffraction has been used in studying the

a)    Crystal structure

b)   Hemoglobin

c)    Double helix structure of DNA

d)   All of these

1.c

2.b

3.d