Physics question and answers for March 06, 2024
- Q 41 If 1 g of steam is mixed with 1 g of ice then the resultant temperature of the mixture is a 270 C b 230 C c 100 C...
- Q 4 gm of steam at 100 C is added to 20 gm of water at 46 C in a container of negligible mass Assuming no heat is lost to surrounding...
- Q The spectrum of a black body at two temperature 27 C and 327 C is shown in the figure Let A and A be the areas under the two curves...
- Q When 0 400 kg of water at 30 C is mixed with 0 150 kg of water at 25 C contained in a calorimeter the final temperature is found to...
- Q Bottom of a lake is at 0 C and atmospheric temperature is 20 C If 1 cm ice is formed on the surface in 24 h then time taken to...
- Q Solid A with mass M is at its melting point TA It is placed in thermal contact with solid B with heat capacity C and initially at temperature TB TB...
- Q In the figure shown AB is a rod of length 30 cm and area of cross section 1 0 cm and thermal conductivity 336 S I units The ends 20...
- Q A copper ball of mass 100 gm is at a temperature T It is dropped in a copper calorimeter of mass 100 gm filled with 170 gm of water at...
- Q substance is cooled by a constant power source Assuming there is urrounding Its temperature vs time graph is shown The value of Solid Si liquid A 2 3 3 T...
- Q The temperature of ice is 10 C specific heat 0 5 kca kg C and that of water 60 C They are mixed in equal amounts What part of the...
- Q 14 2 gm of steam condenses when passed through 40 gm of water initially at 25 C The condensation of ste raises the temperature of water to 54 3 C...
- Q 33 An electric immersion heater of 1 08 kW is immersed in water After the water has reached temperature of 100 C how much time will be required to produce...
- Q Ice at 20 C is filled upto height h 10 cm in a uniform cylindrical vessel Water at temperature 0 C is filled in another identical vessel upto the same...
- Q Two taps supply water to a container one at the temperature of 20 C at the rate of 2 kg minute and another at 80 C at the rate of...
- Q 20 Steam at 100 C is passed into 100 g of ice at 0 C Finally when 80 g ice melts the mass of water present will be Latent heat...
- Q 6 How much minimum amount of ice at 0 C is require to condense 100 g steam at 100 C 2 600 g 4 475 g 1 675 g 3...
- Q Q 6 identical rods made up of two different materials are connected as shown then calculate the temperature of junction B AN 60 CD A B RANSEK D y 10...
- Q 7 10 gm of ice at 20 C is dropped into a calorimeter containing 10 gm of water at 10 C the specific heat of water is twice that of...
- Q Example 16 21 100 g ice at 0 C is mixed with 10 g steam at 100 C Find the final temperature and composition
- Q 17 Water falls from a height 500 m What is the rise in temperature of water at bottom if whole energy remains in the water 1 0 96 C 3...
- Q Heat required to heat water from 0 C to 20 C Total heat required Solution 0 04 x 4200 20 1680 13440 3360 18480 J Illustration 16 Steam at 100...
- Q 3 When 100 g of boiling water at 100 C is added into a calorimeter containing 300 g of cold water at 10 C temperature of the mixture becomes 20...
- Q 2 The thermo e m f E in volts of a certain thermo couple is found to vary with temperature difference 0 in C between the two junctions according to...
- Q Mass m of steam at 100 C is added to mass m of ice and mass M of water both at 0 C in a container of negligible heat capacity...
- Q According to the theory of specific heats of solids at extremely low temperature the specific heat S of a solid varies with absolute temperature T as S CT where C...
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