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

Two wires of same material of radius 'r' and '2r' respectively are welded together end to end. The combination is then used as a sonometer wire under tension 'T'. The joint is kept midway between the two bridges. The ratio of the number of loops formed in the wires such that the joint is a node is

A
1 : 5
B
1 : 2
C
1 : 4
D
1 : 3
2
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
$$\mathrm{\frac{x}{Vn}}$$
3
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
4
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
MHT CET Subjects
EXAM MAP