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A ladder 15m long just reaches the top o...

A ladder 15m long just reaches the top of vertical wall. If the ladder makes an angle of `60^@` with the wall. Then the height of the wall is

A

`15sqrt5m`

B

`(15sqrt3)/2m`

C

7.5 m

D

15 m

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VGS PUBLICATION-BRILLIANT-APPLICATIONS OF TRIGONOMETRY-EXERCISE
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  2. A 20 m long ladder is placed on a pole of 10 m height making 'alpha' a...

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  3. A ladder 15m long just reaches the top of vertical wall. If the ladder...

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  4. The length of the shadow of a tree is 8 m long when the sun's angle of...

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  5. If a pole 6 m high casts a shadow 2sqrt(3)m long on the ground. Then t...

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  6. If the angle of elevation of a tower from a distance of 100 m from its...

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  7. The height of a tower is 10m. The length of its shadow when sun's alti...

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  8. The length of the shadow of a tower on the plane ground is sqrt(3) tim...

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  9. In the given figure, the position of the observer and the object are m...

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  10. The ratio of the length of a rod and its shadow is 1:sqrt(3), then th...

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  11. If two towers of height X and Y subtend angles of 30^(@)" and "60^(@) ...

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  12. A wall of 8m long casts a shadow 5m long. At the same time, a tower ca...

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  13. If the sun's angle of elevation is 60^(@). Then a pole of height 6m wi...

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  14. A pole of 12m high casts a shadow 4sqrt(3)m on the ground. Then the su...

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  15. If the height and length of the shadow of a man are the same, then the...

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  16. If the length of the shadow of a tower is (1)/(sqrt(3)) times the heig...

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  17. A tower is 50m high. Its shadow is x m shorter when the sun's altitude...

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  18. The length of the string of a kitef flying at 100m above the ground wi...

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  19. A player sitting on the top of a tower of height 40m observes the angl...

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  20. If the ratio of height of a tower and the length of its shadow on the ...

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