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Two balls are dropped from heights h and...

Two balls are dropped from heights `h` and `2h` respectively from the earth surface. The ratio of time of these balls to reach the earth is.

A

`1:sqrt2`

B

`sqrt2:1`

C

`2:1`

D

`1:4`

Text Solution

Verified by Experts

The correct Answer is:
A
`t prop sqrth rArr t_1/t_2 = sqrt((h)/(2h)) = (1)/(sqrt2)`
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Knowledge Check

  • Two balls are dropped from heights h and 2h respectively. The ratio of time taken by these balls to reach the earth is

    A
    `1: sqrt(2)`
    B
    `sqrt(2):1`
    C
    `2:1`
    D
    `1:4`

  • Two objects are dropped together from the height h_1 and h_2 . The ratio of time taken by them to reach the earth is

    A
    `sqrt(h_1/h_2)`
    B
    `h_1/h_2`
    C
    `sqrt(h_2/h_1)`
    D
    `h_2/h_1`

  • Two balls A & B, mass of A is m and that of B is 5 m are dropped from the towers of height 36 m and 64 m respectively. The ratio of the time taken by them to reach the ground is :

    A
    `0.75`
    B
    `3//4`
    C
    Both (a) and (b)
    D
    `5//2`