1.

For angles of projection of projectiles at (45° -theta) and (45° + theta) the horizontal ranges described by the projectile are in the ratio

Answer»

`2:1`
`1:1`
`2:3`
`1:2`

Solution :Here `R_(1)=(u^(2)sin2(45^@-THETA))/g` and `R_(2)=(u^(2)sin2(45^@+theta))/g`
or `R_(1)=(u^(2)COS2THETA)/g,R_(@)=(u^(2)cos2theta)/g`
`:.R_(1)/R_(2)=1` or `R_(1):R_(2)::1:1`.


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