PV versus T graph of equal masses of , He and is shown in figure Choose the correct alternative

If  then

We can only apply the L’Hospital’s rule if the direct substitution returns an indeterminate form, that means  .

If     then

We can only apply the L’Hospital’s rule if the direct substitution returns an indeterminate form, that means  or .

Hence Choice 4 is correct

We can only apply the L’Hospital’s rule if the direct substitution returns an indeterminate form, that means  or .

We can only apply the L’Hospital’s rule if the direct substitution returns an indeterminate form, that means .

The graph shown in the adjacent diagram, represents the variation of temperature T of two bodies x and y having same surface area, with time (t) due to emission of radiation. Find the correct relation between emissive power(E) and absorptive power(a) of the two bodies

Two circular disc A and B with equal radii are blackened. They are heated to same temperature and are cooled under identical conditions. What inference do you draw from their cooling curves (R is rate of cooling)

A block of steel heated to 100C is left in a room to cool. Which of the curves shown in the figure, represents the correct behaviour

Cooling graphs are drawn for three liquids a,b and c The specific heat is maximum for liquid

Absorptive power of a white body and of a perfectly black body respectively are

The energies E₁ and E₂ of two radiations are 25 eV and 50 eV respectively. The relation between their wavelengths i.e. λ and λ will be:

The first Lyman transition in the hydrogen spectrum has ΔE =10.2 eV. The same energy change is observed in the second Balmer transition of -