Assertion : The maximum horizontal range of projectile is proportional to square of velocity.Reason : The maximum horizontal range of projectile is equal to maximum height attained by projectile.
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a
If both assertion and reason are true and reason is a true explanation of assertion.
b
If both assertion and reason are true but reason is not the correct explanation of assertion.
c
If assertion is true but reason is false.
d
If both assertion and reason are false.
answer is C.
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Detailed Solution
R = u2sin2θgRmax= u2g where θ = 450Rmax ∝ u2Height H = u2sin2θ2g⇒ Hmax = u22g when θ = 900It is clear that Hmax= Rmax2
Assertion : The maximum horizontal range of projectile is proportional to square of velocity.Reason : The maximum horizontal range of projectile is equal to maximum height attained by projectile.