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If L=2.02m+-0.01m,L(2)=1.02m+-0.01m,"det...

If `L=2.02m+-0.01m,L_(2)=1.02m+-0.01m,"determine"L_(1)+2L_(2)`.

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To solve the problem of determining \( L_1 + 2L_2 \) given the measurements \( L_1 = 2.02 \, \text{m} \pm 0.01 \, \text{m} \) and \( L_2 = 1.02 \, \text{m} \pm 0.01 \, \text{m} \), we will follow these steps: ### Step 1: Identify the values and uncertainties We have: - \( L_1 = 2.02 \, \text{m} \) with an uncertainty of \( \Delta L_1 = 0.01 \, \text{m} \) - \( L_2 = 1.02 \, \text{m} \) with an uncertainty of \( \Delta L_2 = 0.01 \, \text{m} \) ### Step 2: Calculate \( 2L_2 \) ...
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An iron bar ( L_(1) = 0.1 m, A_(1) = 0.02 m^(2) , K_(1) = 79 Wm^(-1) K^(-1) ) and a brass bar (L_(2)=0.1 m , A_(2) = 0.02 m^(2), K_(2) = 109 Wm^(-1)K^(-1) ) are soldered end to end as shown in fig. the free ends of iron bar and brass bar are maintained at 373 K and 273 K respectively. Obtain expressions for and hence compute (i) the temperature of the junction of the two bars, (ii) the equivalent thermal conductivity of the compound bar and (iii) the heat current through the compound bar. .

An iron bar ( L_(1) = 0.1 m, A_(1) = 0.02 m^(2) , K_(1) = 79 Wm^(-1) K^(-1) ) and a brass bar (L_(2)=0.1 m , A_(2) = 0.02 m^(2), K_(2) = 109 Wm^(-1)K^(-1) ) are soldered end to end as shown in fig. the free ends of iron bar and brass bar are maintained at 373 K and 273 K respectively. Obtain expressions for and hence compute (i) the temperature of the junction of the two bars, (ii) the equivalent thermal conductivity of the compound bar and (iii) the heat current through the compound bar. .

The quantum number of electrons are given below: Arrange then in order of increasing energies a. n= 4,l= 2,m_(1)= -2, m_(s)= -(1)/(2) b. n= 3,l= 2,m_(1) = 1, m_(s)= +(1)/(2) c. n= 4,l= 1,m_(1) = 0, m_(s)= +(1)/(2) e.n= 3,l= 2,m_(1)= -2, m_(s)= +(1)/(2) f. n= 4,l= 1,m_(1) = +1, m_(s)= +(1)/(2)