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

An open organ pipe and a closed organ pipe have the frequency of their first overtone identical. The ratio of length of open pipe to that of closed pipe is

A
$$1: 2$$
B
$$3: 4$$
C
$$4: 3$$
D
$$2: 1$$
2
MHT CET 2020 16th October Evening Shift
MCQ (Single Correct Answer)
+1
-0

When tension $$T$$ is applied to a sonometer wire of length $$I$$, it vibrates with the fundamental frequency $$n$$. Keeping the experimental setup same, when the tension is increased by 8 N, the fundamental frequency becomes three times the earlier fundamental frequency $$n$$. The initial tension applied to the wire (in newton) was

A
2.0
B
2.5
C
0.5
D
1.0
3
MHT CET 2020 16th October Morning Shift
MCQ (Single Correct Answer)
+1
-0

The extension in a wire obeying Hooke's law is $$x$$. The speed of sound in the stretched wire is $$v$$. If the extension in the wire is increased to $$4 x$$, then the speed of sound in a wire is

A
2.5v
B
2v
C
1.5v
D
v
4
MHT CET 2020 16th October Morning Shift
MCQ (Single Correct Answer)
+1
-0

Two waves $$Y_1=0.25 \sin 316 t$$ and $$Y_2=0.25 \sin 310 t$$ are propagating along the same direction. The number of beats produced per second are

A
$$\frac{\pi}{2}$$
B
$$\frac{2}{\pi}$$
C
$$\frac{3}{\pi}$$
D
$$\frac{\pi}{3}$$
MHT CET Subjects
EXAM MAP