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Let the height of the building be h. D the man standing on the top of the building. Now, from figure, AB = x and BC = y tan 60⁰ = h/y h = y√3 And tan 30⁰ = h/(x+y) 1/√3 = (y√3)/(x+y) 3y = x+y 2y = x y = x/2 Since, Time taken to cover a distance from A to B = 8 minutes ∴ Time taken to cover a unit distance = 8/x minutes For distance ‘y’ time taken = 8/x × y = 8/x × x/2 = 4 minutes.
The title of ‘Sardar’ to Vallabhbhai Patel was given by
Consider the following statements with reference to Zamindars under Mughals:
1. They had the hereditary right of collecting landrevenue
2....
Where are the Bhimbetka caves located?
Identify the common artifacts found at almost all Harappan sites:
(I) Rep pottery painted with design in black
(II) Metal weights
(...
Which of the following statements about Alauddin Khilji iscorrect?
Which dynasty constructed the Gol Gumbaz?
Consider the following statements in the context of Khayal or Khyalmusic:
1. The musical compositions of khyal are calledqawwalis
2. Poo...
Which type of model of carts has been found in Harappa and Chanhudro?
Which Mughal emperor shifted the capital of the empire from Agra to Delhi?
Where is the first evidence of humans found in India?