Question Answers

In a pitcher when a water is filled some water comes to outer surface slowly through its porous walls and gets evaporated. Most of the latent heat needed for evaporation is taken from water inside and hence this water is cooled down. If 10 kg water is taken 0.05 kg steam at 373 K and [...]

Different capacitors are arranged as shown in Fig. 4.42 Final the equivalent capacity across the points (A) and (B). Different capacitors are arranged as shown in Fig. 4.42 Final the equivalent capacity across the points (A) and (B). September 1, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

The apparatus shown in the figure consists of four glass columns connected by horizontal section. The height of two central column B and C are 49 cm each. The two outer columns A and D are open to the temperature. A and C are maintained at a temperature of 95C while the columns B and [...]

Different capacitors are arranged as shown in Fig. 4.42 Final the equivalent capacity across the points (A) and (B). Different capacitors are arranged as shown in Fig. 4.42 Final the equivalent capacity across the points (A) and (B). September 1, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

A rod AB of length l is pivoted at an end A and freely rotated in a horizontal plane at an angular speed ω about a vertical axis passing through A. If coefficient of linear expansion of material of rod is α, find the percentage change in its angular velocity if temperature of system is [...]

find the equivalent capacitance of air capacitor of capacitance Co when the dielectric slabs of dielectric constant k1 = 2 and k2 = 1 are introduced as shown in figs. (a) and (b). find the equivalent capacitance of air capacitor of capacitance Co when the dielectric slabs of dielectric constant k1 = 2 and k2 [...]

A copper cube of mass 200g slides down an a rough inclined plane of inclination 37 an a constant speed Assume that any loss in mechanical energy goes into the copper block as thermal energy .Find the increase in the temperature of the block as if slides down through 60cm Specific head capacity of copper [...]

Metal block of density 5000kg/m^3 and mass 2kg in suspended by a spring of force constant 200N/m. The spring block system is submerged in water vessel. Total mass of water in vessel is 300gm and in equilibrium the block is at a height 40 cm above the bottom of vessel. The specific heat of material [...]

A dielectric slab fills the entire space of a parallel plate capacitor. the dielectric constant of the slab varies lineraly with distance, varies from K1 to K2, fromb one plate to other. Find the equivalent capacity of the system. Separation between plates is d and area of plates A. A dielectric slab fills the entire [...]

In an insulated vessel, 0.05 kg steam at 373 K and 0.45 kg of ice at 253 K are mixed. Find the final temperature of the mixture (in kelvin). 0.05 kg steam at 373 K and 0.45 kg of ice at 253 K are mixed. Find the final temperature of the mixture (in kelvin). In [...]