1
MHT CET 2020 16th October Morning Shift
MCQ (Single Correct Answer)
+1
-0

When open pipe is closed from one end third overtone of closed pipe is higher in frequency by $$150 \mathrm{~Hz}$$, then second overtone of open pipe. The fundamental frequency of open end pipe will be

A
400 Hz
B
200 Hz
C
500 Hz
D
300 Hz
2
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A pipe open at both ends and a pipe closed at one end have same length. The ratio of frequencies of their $P^{\text {th }}$ overtone is

A
$\frac{p+1}{2 p}$
B
$\frac{p+1}{2 p+1}$
C
$\frac{2(p+1)}{2 p+1}$
D
$\frac{p}{2 p+1}$
3
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The fundamental frequency of sonometer wire increases by 9 Hz , if its tension is increased by $69 \%$, keeping the length constant. The frequency of the wire is

A
42 Hz
B
24 Hz
C
30 Hz
D
36 Hz
4
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A sonometer wire is in unison with a tuning fork, when it is stretched by weight $w$ and the corresponding resonating length is $L_4$. If the weight is reduced to $\left(\frac{w}{4}\right)$, the corresponding resonating length becomes $L_2$. The ratio $\left(\frac{L_1}{L_2}\right)$ is

A
$4: 1$
B
$1: 4$
C
$1: 2$
D
$2: 1$
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