Home
Class 10
MATHS
A pole of height 6 m casts a shadow 2sqr...

A pole of height 6 m casts a shadow `2sqrt3` m long on the ground. Find the sun's elevation.

Text Solution

AI Generated Solution

The correct Answer is:
To find the sun's elevation angle when a pole of height 6 m casts a shadow of length \(2\sqrt{3}\) m, we can use trigonometric ratios in a right triangle. ### Step-by-Step Solution: 1. **Identify the Right Triangle**: - The pole represents the perpendicular side (height) of the triangle, which is 6 m. - The shadow represents the base of the triangle, which is \(2\sqrt{3}\) m. 2. **Use the Tangent Function**: - The tangent of the angle of elevation \(\theta\) can be defined as: \[ \tan(\theta) = \frac{\text{Opposite}}{\text{Adjacent}} = \frac{\text{Height of the pole}}{\text{Length of the shadow}} \] - Substituting the values: \[ \tan(\theta) = \frac{6}{2\sqrt{3}} \] 3. **Simplify the Expression**: - Simplifying \(\frac{6}{2\sqrt{3}}\): \[ \tan(\theta) = \frac{6}{2\sqrt{3}} = \frac{3}{\sqrt{3}} = \sqrt{3} \] 4. **Determine the Angle**: - Now, we need to find \(\theta\) such that: \[ \tan(\theta) = \sqrt{3} \] - From trigonometric values, we know: \[ \tan(60^\circ) = \sqrt{3} \] - Therefore, \(\theta = 60^\circ\). 5. **Conclusion**: - The angle of elevation of the sun is \(60^\circ\).
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • SOME APPLICATIONS OF TRIGONOMETRY

    NAGEEN PRAKASHAN|Exercise Revision Exercise (long Answer Questions)|1 Videos
  • SOME APPLICATIONS OF TRIGONOMETRY

    NAGEEN PRAKASHAN|Exercise Long Answer Questions|5 Videos
  • SOME APPLICATIONS OF TRIGONOMETRY

    NAGEEN PRAKASHAN|Exercise Exercise|32 Videos
  • REAL NUMBERS

    NAGEEN PRAKASHAN|Exercise Revision Exercise Long Answer Questions|5 Videos
  • STATISTICS

    NAGEEN PRAKASHAN|Exercise Revision Exercise Long Answer Questions|5 Videos

Similar Questions

Explore conceptually related problems

A pole 6m high casts a shadow 23m long on the ground,then find the angle oi elevation of the sun.

A vertical pole of length 6 m casts a shadow 4 m long on the ground and the same time a tower casts a shadow 28 m long. Find the height of the tower.

Knowledge Check

  • If a pole 12 m high casts a shadow 4sqrt(3) m long on the ground then the sun's elevation is

    A
    `60^(@)`
    B
    `45^(@)`
    C
    `30^(@)`
    D
    `90^(@)`
  • If a pole of 12 m height casts a shadow of 4sqrt(3) m long on the ground , then the sun 's angle of elevation at that instant is

    A
    `30^(@)`
    B
    `60^(@)`
    C
    `45^(@)`
    D
    `90`
  • If a pole of 24m height casts a shdow of 8√3 m long on the ground then the sun's angle of elevation at that instant will be how much?

    A
    a.`60^(@)`
    B
    b.`30^(@)`
    C
    c.`75^(@)`
    D
    d.`45^(@)`
  • Similar Questions

    Explore conceptually related problems

    If a tower 30 m high, casts a shadow 10sqrt3 m long on the ground, then what is the angle of elevation of the sun ?

    A vertical pole of length 6m casts a shadow 4m long on the ground and at the same time a tower casts a shadow 28m long.Find the height of the tower.

    A pole which is 6 m high cast a shadow 2sqrt(3) on the ground. What is the sun’s angle of elevation.

    A vertical pole of length 8 m casts a shadow of 15 m long on the ground. At the same time, a tower casts a shadow 45 m long. Find the height of the tower.

    A pole casts a shadow of length 2sqrt(3) m on the ground when the sun's elevation is 60^(@) . The height of the pole is