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The Experimental Setup

54.The wavele...

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54.The wavelength of K-alpha x rays for lead isotopes pb208,pb206 and pb204 are v1 ,v2,and v3 respectiVely then

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Q. The wavelengths of

K_{α}

X-rays for lead isotopes

P b^{208}, P b^{206}

P b^{204}

λ_{1}, λ_{2}

λ_{3}

respectively. Then

Q. A particle is travelling with uniform acceleration of magnitude a. During successive time intervals of

Δ t_{1}, Δ t_{2}

Δ t_{3}

, its average velocities are

v_{1}, v_{2}

v_{3}

respectively. Then,

Q. The frequencies for series limit of Balmer and Paschen series respectively are

^{'} v_{1}^{'}

^{'} v_{3}^{'}

. If frequency of first line of Balmer series is

^{'} v_{2}^{'}

then the relation between

^{'} v_{1}^{'},^{'} v_{2}^{'}

^{'} v_{3}^{'}

v_{1}, v_{2}, v_{3}

are the volumes of parallelopiped triangular prism and tetrahedron respectively and three coterminous edges of all figures are

\to a, \to b, \to c

v_{1}, v_{2}, v_{3}

Q. Three blocks of mass

2 kg, 3 kg

5 kg

are tied with three identical strings. The blocks are free to rotate in a vertical circle. The minimum velocity given to the blocks to complete the vertical circle is

v_{1}, v_{2}

v_{3}

respectively then

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