1
MHT CET 2021 24th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

A closed organ pipe and an open organ pipe of same length produce 2 beats per second when they are set into vibrations together in fundamental mode. The length of open pipe is now halved and that of closed pipe is doubled. The number of beats produced per second will be

A
4
B
3
C
8
D
7
2
MHT CET 2021 24th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

A sonometer wire of length 25 cm vibrates in unison with a tuning fork. When its length is decreased by 1 cm, 6 beats are heard per second. What is the frequency of the tuning fork?

A
200 Hz
B
72 Hz
C
100 Hz
D
144 Hz
3
MHT CET 2021 24th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

Two tuning forks of frequencies $$320 \mathrm{~Hz}$$ and $$480 \mathrm{~Hz}$$ are sounded together to produce sound waves. The velocity of sound in air is $$320 \mathrm{~ms}^{-1}$$. The difference between wavelengths of these waves is nearly

A
48 cm
B
16.5 cm
C
33 cm
D
42 cm
4
MHT CET 2021 24th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

When an air column in a pipe open at both ends vibrates such that four antinodes and three nodes are formed, then the corresponding mode of vibration is

A
first overtone
B
second overtone
C
fourth overtone
D
third overtone
MHT CET Subjects
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12