Numerical Question 1 Numerical Question 2 A mass hung from a spring vibrates 15 times in 12 s. Calculate (a) the frequency and (b) time period…

Comprehensive Question 7: Using ripple tank, explain reflection, refraction and diffraction of waves. Answer ReflectionWhen a wave travels in one medium falls on the boundary…

Problem 10: A block of ice at 273 K is put in thermal contact with a container of steam at 373 K, converting 25.0 g…

Problem 9: An ideal gas at 20.0° C and a pressure of 1.50 × 105 Pa is in a container having a volume of 1.00…

Problem 8: A system absorbs 1176 J of heat and at the same time does 352.8 J of external work. Find the change in internal…

Calculate the change in entropy when10 kg of water is heated from 900 C to 1000 C. Solution Given Mass of water = 10 kg, …

Problem 6: What is the least amount of work that must be performed to freeze one gram of water at 00C by means of refrigerator?…

A Carnot engine absorbs 2000 J of heat from the source of heat engine at 2270C = 500 K and rejects 1200 J of heat…

Problem 4: Find the efficiency of a Carnot heat engine working between the steam and ice points. Solution We know that the steam point =…

Problem 3: A sample of ideal gas is uniformly heated at constant pressure. If the amount of 180 J of heat is supplied to the…