InterviewSolution
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InterviewSolution
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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 byA. `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)` |
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Answer» Correct Answer - D `tan theta_(1)=(tan theta)/(cos alpha), tan theta_(2)=(tan theta)/(cos(90-alpha))=(tan theta)/(sin alpha)` `cos^(2)alpha+sin^(2)alpha=1` `cot^(2) theta_(1)+cot^(2) theta_(2)=cot^(2) theta` |
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