1
MHT CET 2023 11th May Evening Shift
+1
-0

A transverse wave in a medium is given by $$y=A \sin 2(\omega t-k x)$$. It is found that the magnitude of the maximum velocity of particles in the medium is equal to that of the wave velocity. What is the value of $$A$$ ?

A
$$\frac{2 \lambda}{\pi}$$
B
$$\frac{\lambda}{\pi}$$
C
$$\frac{\lambda}{2 \pi}$$
D
$$\frac{\lambda}{4 \pi}$$
2
MHT CET 2023 11th May Evening Shift
+1
-0

A rectangular block of mass '$$\mathrm{m}$$' and crosssectional area A, floats on a liquid of density '$$\rho$$'. It is given a small vertical displacement from equilibrium, it starts oscillating with frequency '$$n$$' equal to ( $$g=$$ acceleration due to gravity)

A
$$\frac{1}{2 \pi} \sqrt{\frac{\mathrm{Apg}}{\mathrm{m}}}$$
B
$$2 \pi \sqrt{\frac{\mathrm{Apg}}{\mathrm{m}}}$$
C
$$\frac{1}{2 \pi} \sqrt{\frac{\mathrm{m}}{\mathrm{Apg}}}$$
D
$$2 \pi \sqrt{\frac{\mathrm{m}}{\mathrm{Apg}}}$$
3
MHT CET 2023 11th May Evening Shift
+1
-0

A sound of frequency $$480 \mathrm{~Hz}$$ is emitted from the stringed instrument. The velocity of sound in air is $$320 \mathrm{~m} / \mathrm{s}$$. After completing 180 vibrations, the distance covered by a wave is

A
60 m
B
90 m
C
120 m
D
180 m
4
MHT CET 2023 11th May Evening Shift
+1
-0

A sonometer wire '$$A$$' of diameter '$$\mathrm{d}$$' under tension '$$T$$' having density '$$\rho_1$$' vibrates with fundamental frequency '$$n$$'. If we use another wire '$$B$$' which vibrates with same frequency under tension '$$2 \mathrm{~T}$$' and diameter '$$2 \mathrm{D}$$' then density '$$\rho_2$$' of wire '$$B$$' will be

A
$$\rho_2=2 \rho_1$$
B
$$\rho_2=\rho_1$$
C
$$\rho_2=\frac{\rho_1}{2}$$
D
$$\rho_2=\frac{\rho_1}{4}$$
EXAM MAP
Medical
NEET