1
MHT CET 2021 20th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

The frequency of a tuning fork is 'n' Hz and velocity of sound in air is 'V' m/s. When the tuning fork completes 'x' vibrations, the distance travelled by the wave is

A
$$\mathrm{\frac{V}{xn}}$$
B
$$\mathrm{\frac{Vn}{x}}$$
C
$$\mathrm{\frac{xV}{n}}$$
D
$$\mathrm{\frac{x}{Vn}}$$
2
MHT CET 2020 19th October Evening Shift
MCQ (Single Correct Answer)
+1
-0

A tuning fork $A$ produces 5 beats per second with a tuning fork of frequency 480 Hz . When a little wax is stuck to a prong of fork $A$, the number of beats heard per second becomes 2 . What is the frequency of tuning fork $A$ before the wax is stuck to it ?

A
475 Hz
B
482 Hz
C
478 Hz
D
485 Hz
3
MHT CET 2020 19th October Evening Shift
MCQ (Single Correct Answer)
+1
-0

At the poles, a stretched wire of a given length vibrates in unison with a tuning fork. At the equator, for same setting to produce resonance with same fork, the vibrating length of wire

A
should be same
B
should be increased
C
should be decreased
D
should be 3 times the original length
4
MHT CET 2020 19th October Evening Shift
MCQ (Single Correct Answer)
+1
-0

A uniform metal wire has length $L$, mass $M$ and density $\rho$. It is under tension $T$ and $v$ is the speed of transverse wave along the wire. The area of cross-section of the wire is

A
$\frac{T}{v^2 \rho}$
B
$\frac{v^2 \rho}{T}$
C
$T^2 \rho V$
D
$T v^2 \rho$
MHT CET Subjects
EXAM MAP