Saved Bookmarks
| 1. |
Ratio of the ranges of the bullets fired from a gun `(` of constant muzzle speed `)` at angle `theta, 2 theta &4 theta` is found in the ratio `x:2:2`, then the value of `x` will be `(` Assume same muzzle speed of bullets `)`A. 1B. 2C. `sqrt(3)`D. none of these |
|
Answer» Correct Answer - D Range is same for `2 theta` and `4 theta`. `:. 4 theta+4 theta=90^(@)rArrtheta 15^(@)` `:. ` Ratio of ranges will be sin `30^(@): sin60^(@):sin120^(@)`. `(1)/(2):(sqrt(3))/(2):(sqrt(3))/(2)rArr(2)/(sqrt(3)):2:2` |
|