NEET Solved Paper 2017 Question 44
Question: If $ {\theta_1} $ and $ {\theta_2} $ be the apparent angles of dip observed in two vertical planes at right angles to each other, then the true angle of dip $ \theta $ is given by
Options:
A) $ {{\tan }^{2}}\theta ={{\tan }^{2}}{\theta_1}-{{\tan }^{2}}{\theta_2} $
B) $ {{\cot }^{2}}\theta ={{\cot }^{2}}{\theta_1}+{{\cot }^{2}}{\theta_2} $
C) $ {{\tan }^{2}}\theta ={{\tan }^{2}}{\theta_1}+{{\tan }^{2}}{\theta_2} $
D) $ {{\cot }^{2}}\theta ={{\cot }^{2}}{\theta_1}-{{\cot }^{2}}{\theta_2} $
Show Answer
Answer:
Correct Answer: B
Solution:
- $ {{\cot }^{2}}\theta ={{\cot }^{2}}{\theta_1}+{{\cot }^{2}}{\theta_2} $
