甲、乙两个单摆,甲单摆的摆球质量是m1,摆角是θ1,摆长是L1,周期是T1;乙单摆的摆球质量是m2,摆角是θ2,摆长是L2,周期是T2。若它们的摆角都小于5°,则有()
A.只要m1>m2,就有T1>T2 B.只要L1>L2,就有T1>T2 C.只要L1>L2,就有T1=T2 D.只有m1=m2,θ1=θ2,L1=L2,才有T1=T2正确答案B
甲、乙两个单摆,甲单摆的摆球质量是m1,摆角是θ1,摆长是L1,周期是T1;乙单摆的摆球质量是m2,摆角是θ2,摆长是L2,周期是T2。若它们的摆角都小于5°,则有()
A.只要m1>m2,就有T1>T2 B.只要L1>L2,就有T1>T2 C.只要L1>L2,就有T1=T2 D.只有m1=m2,θ1=θ2,L1=L2,才有T1=T2正确答案B