Galileo writes that for angles of projection of a projectile at angles (45+θ)and(45−θ), the horizontal ranges described by the projectile are in the ratio of (ifθ≤45)
A
2 : 1
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B
1 : 2
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C
1 : 1
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D
2 : 3
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Solution
The correct option is C1 : 1 For angle(45∘−θ),R=u2sin(90∘−2θ)g=u2cos2θg For angle(45∘+θ),R=u2sin(90∘+2θ)g=u2cos2θg