• Want FREE Counselling for Exam Preparation?
###### Call Us
800-355-2211

Speak With a Friendly Mentor.

###### Harshvardhan Sharma posted an Question
January 21, 2021 • 13:46 pm 30 points
• IIT JAM
• Geology (GG)

## The angle between [111] and [112] directions in a cubic crystal is___?

the angle between [111] and [112] directions in a Cubic crystal is?

• 3 Likes
• 0 Shares
• ##### Saurabh 1

Just use the simple relation for angle between two planes. Cosθ = 1×1+1×1+1×2 / √1+1+1 × √1+1+4 = 4/√18 Or cosθ = 4/3√2 = 0.942 ... So finally θ = arc cos(0.942) = 19.6° ... Ans.

• ##### Sajan sarthak Best Answer

ANGLE IS 19.47 °

Sir,Answer in module is 90° given,also we can apply this formula for both interfacial angle and angle between zone axis?

### Do You Want Better RANK in Your Exam?

Start Your Preparations with Eduncle’s FREE Study Material

• Updated Syllabus, Paper Pattern & Full Exam Details
• Sample Theory of Most Important Topic
• Model Test Paper with Detailed Solutions
• Last 5 Years Question Papers & Answers