Physics question and answers for February 20, 2024
- Q by sound to travel fromx 0 to 1 is k M Y RT where k is take 2 1 41 A cylinder supports a piston of mass 5 kg and...
- Q 67 One mole of an ideal gas undergoes a process in which T To aV where To and a are positive constants and V is volume The volume for which...
- Q Two liquids A and B are at 36 C and 24 C When mixed in equal masses the temperature of the mixture is found to be 28 C Their specific...
- Q 1 A sample of ideal gas y 1 4 is heated at constant pressure If an amount of 100 J heat is supplied to the gas the work done by...
- Q Q5 A closed rigid container of volume 0 5 m3 is placed on a hot plate Initially the container holds a two phase mixture of saturated liquid water and saturated...
- Q P volume V and temperature T of a certain T Here a is a 33 Pressure material are related by P V constant The work done by the material when...
- Q 81 The following graph shows two isotherms for a fixed mass of an ideal gas The ratio of r m s speed of the molecules at temperature T and T...
- Q In a mechanical refrigerator the low temperature coils are at a temperature of 23 C and the compressed gas in the condenser has a temperature of 27 C The theoretical...
- Q 19 Pressure versus density graph of an p ideal gas is shown in figure a during the process AB work done by the gas is positive b during the process...
- Q A Carnot engine working between 300 K and 600 K has work output of 800 J cycle What is amount of heat energy supplied to the engine from source per...
- Q 10 An ideal gas y 15 is expanded adiabatically How many times has the gas to be expanded to reduce the root mean square velocity of molecules 2 0 times...
- Q 8 An ideal monoatomic gas undergoes a cyclic process ABCA as shown in the figure The ratio of heat absorbed during AB to the work done on the gas during...
- Q gas 2 If 2 moles of an ideal monoatomic at temperature To is mixed with 4 moles of another ideal monoatomic gas at temperature 2 To then the temperature of...
- Q A Goodyear blimp typically contains 5610 m of helium He at an absolute pressure of 1 10 x 10 Pa The temperature of the hell is 286 K What is...
- Q 244 In which of the figure no heat exchange between the gas and the surroundings will take place if the gas is taken along curve curves are isothermal and adiabatic...
- Q diatomic gas is trapped by two insulting massless pistons with the help of an ideal spring The natural length of the spring is equal to the length of the cylinder...
- Q If the temperature of the sun becomes twice its present temperature then Radiated energy would be predominantly in infrared Radiated energy would be predominantly in ultraviolet Radiated energy would be...
- Q Question 21 A gaseous mixture initially at 300 K and 2 105 N m pressure contains 6 gm o H and 8 gm of He The mixture is expanded four...
- Q A volume V of a gas at a temperature T and a pressure p is enclosed in a sphere It is connected to another sphere of volume V 2 by...
- Q Two adiabatic process involving an ideal gas are plotted on a P V diagram A and B are two points on these curves as shown in the diagram Which of...
- Q A carnot engine with sink s temperature at 17 C has 50 efficiency By how much should its source temperature be changed to increases its efficiency to 60 Question Type...
- Q When M gram of ice at 10 C specific heat 0 5 cal g C is added to M gram of water at 50 C finally no ice is left...
- Q In the diagrams i to iv of variation of volume with changing pressure is shown A gas is taken along the path ABCDA The change in internal energy of the...
- Q A 9 0 g ice cube at 10 C is in a rigid sealed container from which all the air has been evacuated The following values for H O may...
- Q A cylindrical tube of uniform cross sectional area A is fitted with two air tight frictionless pistons The pistons are connected to each other by a metallic wire Initially the...
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