NEET Questions

Which of the following factors does NOT affect the fundamental frequency of a sonometer wire?

A rod of length L is placed on x axis between x = 0 and x = L. The linear density i.e., mass per unit length denoted by r, of this rod, varies as, r = a + bx. The dimensions of b will be

A rod of length L is placed on x axis between x = 0 and x = L. The linear density i.e., mass per unit length denoted by r, of this rod, varies as, r = a + bx. The dimensions of b will be

A heavy rope is suspended from rigid support A wave pulse is set up at the lower end. Then

Given that $2l\sqrt {\frac{m}{T}}$, where l is the length of a string of linear density m, under tension T has the same dimensional formula as that of

Given that $2l\sqrt {\frac{m}{T}}$, where l is the length of a string of linear density m, under tension T has the same dimensional formula as that of

If linear density of a rod of length 3 m varies as $\lambda = 2 + x$, then the position of the centre of gravity of the rod is

A wire of density $9 imes {10^3}kg{m^{ - 3}}$ is stretched between two clamps $1$m part and is subjected to an extension of $4.9 imes {10^{ - 4}}m$. The lowest frequency of transverse vibration in the wire is $Y = 9 imes {10^{10}}N{m^{ - 2}})$

Two Cu wires of radii ${{\rm{R}}_1}\,\,{\rm{and}}\,\,{{\rm{R}}_2}$ such that $\left( {{R_1} > {R_2}} \right)$. Then which of the following is true?

The fundamental frequency of a sonometer wire is $v$. if its radius is doubled and its tension becomes half, the material of the wire remains same, the new fundamental frequency will be