1.

Three particles A, B and C are projected from the same point with the same initial speeds making angles `30^(@), 45^(@) and 60^(@)` respectively with the horizontal. Which of the following statement is correct?A. A,B and C have unequal rangesB. Ranges of A and C are equal and less than that of BC. Ranges of A and C are equal and greater then that of BD. A,B and C have equal ranges

Answer» Correct Answer - B
`because theta_(A)+theta_(B)=90^(@)`
`therefore R_(A)=R_(C)=(u^(2)sin2xx30^(@))/(g_=(u^(2)sqrt(3))/(2g)`
`R_(B)=(u^(2)sin2xx45^(@))/(g)=(u^(2))/(g)rArr R_(B)gtR_(A)=R_(C)`


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