39.2N
19.6N
14.2N
7.4N
5.1N
Correct answer is B
f α √T
f1f2=√T1T2
250350=√10T2
57=√10T2
2549=10T2
T2 = 49×1025=19.6
Which of the following is not a property of longitudinal waves? ...
Which of the following assumptions is not valid for an ideal gas? ...
Which of the following values on the absolute scale of temperature is the ice point? ...
Particles of mass 10−2kg is fixed to the tip of a fan blade which rotates with angular veloci...
Which of the following instruments is best for measuring the diameter of a thin constantan wire? ...
A platinum resistance thermometer records 3.0Ω at 0oC and 8.0Ω at 100oC. If it rec...