The angle of elevation of the summit of a mountain from a point on the ground is 45^\circ . After climbing up one {\km} towards the summit at an inclination of 30^\circ from the ground, the angle of elevation of the summit is found to be 60^\circ . Then the height (in {\km} ) of the summit from the ground is : [6 Sep 2020 Shift 2]

JEE Mains 06-Sep-2020 Shift 2 Solved Paper

Section: Mathematics

Question : 60 of 75

Marks: +1, -0

The angle of elevation of the summit of a mountain from a point on the ground is 45°. After climbing up one km towards the summit at an inclination of 30° from the ground, the angle of elevation of the summit is found to be 60°. Then the height (in km ) of the summit from the ground is :

[6 Sep 2020 Shift 2]

1
√3−1
1
√3+1
√3−1
√3+1
√3+1
√3−1

Validate

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