If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.
4.0 x 1014Hz
6.0 x 1014Hz
7.5 x 1014Hz
9.0 x 1014Hz
Correct answer is A
1.5 = 6×1014F
F = 4 x 1014Hz
5.5Hz
148.5Hz
200.0Hz
550.0Hz
Correct answer is C
λ = 4L = 4 X 45 = 180cm
F = Vλ
= 360180×10−2
= 200Hz
The fundamental frequency of vibration of a sonometer wire may be halved by
doubling the length of the wire
doubling the mass of the wire
reducing the tension by half
reducing the absolute temperature by half
Correct answer is A
F α 1L